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From: Wolfman12395
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  • Where's the luck?

  • @DJArchieD Where I'm from we know that there is no 0 in the formula for water; it's an O and it stands for oxygen.

  • im on the weird part of youtube again -.-

  • he probably knew the answer, its alot harder to think of it when its under pressure

  • WTF, he's asking the audience and he's a science teacher. Loser!

  • Even half the audience have no fucking clue, this is America

  • Even half the audience have no fucking clue, this is america

  • wow, maybe i could teach science

  • Where I'm from they have a word for people who don't know the melting and freezing point of H20 are the same.

    They're called dumbfucks

  • They can't be the same. If they were the same, then if the water/ice is at exactly 32F/0C then it would be both water AND ice? Doesn't make sense.

  • @da1krayziethug once you get to 0, you need to take away more energy from water to freeze than give energy to ice to make it melt. that's how they stay the same

  • makes no sense. Ice melts into water at the same temperature that water freezes? Surely if the cube began to melt it would freeze again. PARADOX

  • @EEHCOL Yer but its about atoms and how much energy/movement they have. So you could at the same time (and you do) have atoms flying round not in contact with each other while others vibrate closely. At all tempertures atoms are vibrating are similar but not exactly the same amounts. So its not a paradox because we are not talking about the same atoms. When you hold a room temperture glass of water, some (a few) are acting with the energy of a gas and solid, despite it being liquid.

  • this would only happen in America..

  • For ice to melt it must absorb heat energy to break down the molecular lattice structure. For water to freeze it must be able to lose heat energy. So whether the water is melting at 0oC or freezing at 0oC depends on whether the surrounding temperature is higher or lower than zero.

  • WHAT IS SUBLIMATION?!

  • @UnseenAdict420 solid to gas

  • melting: solid --> liquid

    freezing: liquid-->solid

  • this "true" answer makes no sense, and just think about it logically: how can the melting point and freezing point be the same? assume you had water vapor and were able to bring it down to the (so-called) melting/freezing point. Would it melt, or freeze?

    Obvious answer it's impossible as the melting and freezing point must be different temps. The melting point is a little higher, this ? was worded very weird, and there really was no "right" answer. No wonder he was confused as fuck there.

  • @iloveihop07 Your confusion as to what it means for the melting and freezing points to be the same, doesn't change the facts.

    They are the same. There is a temperature ABOVE which point water is liquid, and BELOW which it's a solid. This is known as both the melting AND freezing point - it's the point about which water transitions from liquid-->solid, or solid-->liquid.

  • The real worry is that 40% said one was higher than the other...

  • @mrDeffBeatz It could be a common misconception because not everyone completely knows, because no one really gives a fuck about ice melting and water freezing. They are used to hearing "water freezes at 0c" so why would it melt at that same temperature right?

  • Plz tell me he was fucking about when he spent ages thinking about it and then asked the fucking audience!

  • @DJArchieD so if you got an ice cube and put it in a room at 0degrees wouldn't you expect it to stay as a solid, (considering water freezes at 0degrees) instead of melting into water? When water freezes, the particles line up (that's how it turns to a solid) so if this happens at 0degrees how would the particles separate at the same temp, the solid would never form. This is far more complicated than I first thought haha (sorry for calling you a spak btw)

  • @1988duncan If the temperature is constant, depending on the pressure, the ice cube will stay solid or will turn into water, it's rather to stay as a solid, if you're at normal temperature, I think.

  • you sure he is a science teacher?

  • this show is nothing without chris tarrant

  • LOL THEY are same ofcourse. you don't have to be science teacher or something to answer that.....

  • @codenamerishi he was science teacher infact and he couldn't lmao

  • @codenamerishi Actually it depends on pressure.

  • Are you kidding that 40% people doesn't know?

  • @squeezeslemons I never said that all. You have just proved my point though by so eloquently failing at the ENGLISH language (yes, we gave America that) you had to resort to cursing in order to demonstrate your anger at my comment.

    That says it all really ...

  • @MsFyrefli I'm from the UK and would have to point you have just mocked an entire country on one mans actions, I hope the rest of Youtube's subscribers do not do the same to our country on your actions. It is arrogant people like you who puts the 21st century to shame!

  • He's stupid

  • WHAT!!! He's a science teacher? Did they mix up his profile or what i learned this in Pri 4/5

  • FYI 0°C is the same as 32°F.

    (Just in case @madu86 does not get that concept either!)

  • @MsFyrefli normal people use celsius (kelvin in applications) who uses Ferenheit anyway?...a yes!...americans...

  • @madu86 yeah, way to bash on an entire nation's people because of the units of measurement that they decided on over a hundred years ago! considering you are the one who said "this is incorrect..." you should take a look at yourself

  • @madu86 There you have it. Not only have the good old U.S of A not made it into the 21st Century, their own teachers cannot even answer a basic question about the subject they teach!

    Makes me proud to be in Blighty it does!

  • @MsFyrefli Yes! Because this one guy who was on a gameshow a few years ago is our entire fucking country! Right?

  • LMAO, fuckin' morons in society nowadays

  • it is actually equal. in order to change the phase of a water from liquid to solid or vice versa. additional heat is needed. it is called latent heat of fusion.

  • Y'all niggas posting in a troll thread

  • Wait...WTF how does that make any sense. How is the melting point of ice the same as the freezing point of water. That would mean that the ice would be melting and freezing at the exact same time which i believe is impossible. Man, this is just fucking silly. BTW this is the worst science teacher ever wat a retard

  • @TheCrazedLorry98 ice can melt and freeze at the same time, that's not impossible that's sience

  • @vcmaxim Ice can't freeze.. just like water can't melt.

  • haha I can't believe the number of people support the top two comments, really shows the quality of our current education standards.

  • @TheRedStarReports

    I wouldn't agree, if anything support for the other answers shows that the audience are inquisitive, and have been taught to question things which seem to be deceivingly simple. It's like me asking you at what point water freezes, and you replying with 0 degrees centigrade. This is not always the case, because water expands when frozen, if you forceably restrict the volume of water, or even suitably agitate it, you can reduce the temperature below 0

  • @Josh1000digby I see you are playing devil's advocate :P

  • @TheRedStarReports

    Yeha :D

  • The melting point is higher than the freezing point though..........

  • Ice melts at 32 F. Water freezes at 32 F. There is no argument, you stupids.

  • @TheLaughiingMan In theory that's correct, but do you honestly think water maintained at 0 degree Celsius room temperature will be able to both freeze and melt at the same time?

  • B is correct. its much more complex than temperature. its to do with phase equilibria/entropy/physics and shit. To be honest I can't remember exactly why, long time since I learned this. Do a physics/chemical engineering/chemistry degree if you want to be able to explain it properly.

  • they are the same guys. 0 is the triple point of water. what that means is you can have vapour, ice and liquid water all at 0. actually, i think its like 0.001 but you get the picture.

  • see this is how americans are stereotyped as stupid...he doesnt even know something he learned his entire life and people know this in elementary...i dont believe in the stereotype though because i live far from the usa, and im in high school and you wouldnt believe what kind of stupid statements i have heard in the last 3 years...

  • @illman300 You're wrong. The answer is A. The freezing point = 0 and the melting point > 0.

  • @MrDekiruYo lol i never gave the answer...

  • when temperature is exactly 0 C water starts to freeze, but doing so it generates heat and melts. this is something we dont bumb into in nature, because temperature there is almost never precisely 0 C, but in a lab we can create this odd situation when water turns to ice and melts simultaniously. what I don't understand tough is why A was incorrect. maby someone else knows and can tell us :)

  • They are NOT the same... this is WRONG.

  • @eurovision50 yes they are, in 0 degrees celsius water turns into ice and vice versa. basic chemistry. you can google it.

  • @inkkulol That is not chemistry, but physics

  • @cenccu i thought i learnt that in chemistry, but then again i had the same taecher in both so i could be mixim them up in my head... anway, in finland we learn when we are 13 or so, that the freezing and meltingpoint of water is the same

  • The sad truth, american teachers pass university/college with a very low mark, going on to become teachers (aka instruction followers, aka curriculum applicants because it has already been set) and when you ask them one question that does not have to do with today's lesson, their answer is the most correct then -- "You will learn it in university, be patient"... Well done America...

  • The melting point is at 4 degrees celcius and the freezing point is at 0 degrees celcius. the answer was incorect.

  • @TheMike2993 I think you're wrong and not very well schooled... You're saying that if the temperature is 2 degrees celsius and you have a cube of ice in front of you, it would not melt...

  • this is incorrect...

  • @madu86

    Nope...

  • @madu86 B is the correct answer as latent heat of fusion must be taken into consideration. Ice at 0°C needs to absorb addition energy to transition into a liquid state. This process does not change its temperature. This is also true for the transition of liquid water to ice, where water can exist at 0°C. In order to transition into a solid state, addition energy must be removed from the water, which ultimately does not change its temperature. In essence, statement B is true.

  • @THEGUITARMANGUY *additional

  • @madu86 you are incorrect

    Ice melts at 0 degrees Celsius and water freezes at 0 degrees celsius

  • @DJArchieD you spak, if water freezes at 0degrees and becomes ice it doenst then melt at 0degrees back into water, it doesnt continously freeze and melt itself at the same temperature.

  • @1988duncan Haha, ironically it does freeze and melt at the exact same temperature of 273.15 Kelvin, which is 0 degrees Celsius

  • @DJArchieD

    Pretty sure thats incorrect. If water freezes at 0 degrees, then how can it also not freeze at 0 degrees?

  • @p0sn Just go pick up any science book, my friend. Look up the triple point of water, it states that water can exist as a gas, liquid and solid at 0 degrees celsius by making very slight changes to i.e. pressure or temperature (0.01 degrees)

  • @p0sn Because of how the physics work. The temperature is constant during the phase shift from ice to water and vice versa.

  • @DJArchieD

    That would mean that water would constantly change the state at 0 degrees celsius. It freezes, than its ice so it melts, then its water so it freezes again? The truth is slightly different. There is a exact turning point, like in 0.0004°C its liquid and in 0.0003 °C its frozen. And its never really exactly 0°C, because the airpressure is also a factor. (What I recall from my chemistry teachings..)

  • @k3nny111 I don't know about you, but to me, anything between -0,01 and 0,01 equals 0 zero to me. And the weather is never a perfect constant of 0 degrees, it can differ easily between -0,5 and 0,5, so therefore it is said that ice melts and water freezes at the same temperature.

  • @DJArchieD No. You are VERY incorrect yourself. Ice melts at any temperature greater than 0 degrees celsius (including 0.00000001 degrees celsius). Water does however only achieve Absolute freezing at precisely 0 degrees celsius.

    With your theory of ice melting at 0 degrees celsius, and water freezing at 0 degrees celsius, then what substance would occur at 0 degrees celsius? A solid (ice) or liquid (water)?

    Haha. YOU, DJArchieD, are very incorrect. Don't correct others when YOU are wrong.

  • @Pokemongo1 the right answer to your question is: A and B, because water and ice exist in an equilibrium at 0 degrees

    And there should be a C as answer too, because H20 can exist as a gas at precisely 0 degrees Celsius.

  • @DJArchieD Oh, and to all of the people that "liked" your comment - how DUMB can you be?!

  • @DJArchieD You're kind of both wrong, the question is correct, but only if the melting ice and freezing water are at the same pressure. A sweeping statement saying they both happen at 0 degrees celsius is incorrect, that is only at standard pressure. Water can also be cooled to -42 degrees if there is no nucleation to trigger the freeze. Have a look at properties of water on wiki, the triple point of water is quite interesting and worth a read too.

  • @tomr200199 I mentioned the effect of pressure earlier. Of course we are talking about standard pressure here.

  • @madu86 It doesn't change until it is completely changed

  • tom bergeron!:D

  • water freezes faster the hotter it is... js

  • its A. like inversiongamesstudio said

  • Americans are dumb

  • @Scudeyyy what r u? and btw, he got that RIGHT. Now,he wouldnt be dumb if he got it RIGHT then,would he?

  • @pixiemoes No he had to get the audience to help him answer a question an 11 year old kid could answer. The audience too didn't provide a good account of themselves either because the majority mocked him by laughing when he wasn't sure about the question and yet 40% got that horribly wrong. Maybe my comment was a bit stereotypical as most Americans probably aren't as "dumb" as such but It was merely a joke. So pipe down.

  • yeah, i was right :D

  • I thought the answer was A for the same reasons as InversionGameStudios and don't really understand why it isn't.

  • @FluffyFooFookins I was thinking A but then i realised i was thinking the boiling point of water rather than the melting point of ice

  • @maddona999

    That girl in your profile picture is cute as a button, is she a celebrity or something?

  • @FluffyFooFookins Um no its just me :3

  • It is A. How does it make sense to have ice in a 0 degree room (celsius obviously), and it melts, and have water in another 0 degree room and it freezes?

    Or even better, have a room that constantly maintained at exactly 0 degrees. Put water in the room, it will freeze. Now there is ice in the room, and it will melt. Now there is water and the room, and it will freeze. It will melt and freeze over and over for eternity, without the room ever changing temperature.

  • @InversionGameStudios Actually maybe I change my answer. I assumed water is ice if it is 0 or less, and water if it is above 0. But then I thought what is the lowest number that is above 0? It would have no number between it and 0, and 0 is the only number with no number between it and 0. I don't know anymore. What is water at exactly 0 degrees? Liquid or solid?

  • @InversionGameStudios since it is impossible to get a room at exactly zero degrees celsius, what you are saying is impossible

    but what you are saying may also be known as a reversible process, it is a theoretical process that may potentially produce an infinite amount of energy

    however its only theoretical since you cant get a room at exactly 0 degrees celsius

  • @InversionGameStudios That's exactly what I was thinking. I think arguably the answer could be either A or B.

  • @InversionGameStudios its called the triple point of water..

  • Comment removed

  • @InversionGameStudios

    dude....

  • @InversionGameStudios Unless ur in second grade that wouldn't make sense, if the melting point is higher and the freezing point is lower then what is inbetween?

  • @TheFearUnlimited Nothing. One is defined as x, the other as y. x=0, and y>0. y is greater than x, but there is nothing inbetween.

  • @InversionGameStudios The freezing point of water is 32 degrees.

  • @InversionGameStudios You definitely didn't specify this in your earlier comment.

  • @robohobokittykiller2 I did, I said:

    0 degree room (celsius obviously),

    and really, this is math / science. People use the metric system for those.

  • @InversionGameStudios At 0 degrees, there is an equilibrium between ice melting and water freezing. So it is not A

  • @InversionGameStudios Because of equilibrium... think of it like this... A liquid changing to a solid when cooling doesn't just occur instantaneously, you will initially get a 'mush' which is comprised of solid and liquid components... 0 degrees centigrade is the point at which we will see solidification... but also liquid.

  • @yermawmycurlers I've never regretted making a comment on a video so much. I get replies to this every day, and I never really have anything to say to any of them. I usually try to get replies with my comments, but this is just pointless arguing, and people thinking I'm talking about fahrenheit.

  • @InversionGameStudios Well you're admitting being incorrect, few people are decent enough to do that on here. I'm not here to argue, only to explain :), arguing would be pointless because if you can't convince someone of something first time round, why bother?

  • @InversionGameStudios Actually this is exactly what happen, 0,01 degrees Celcius is the triple point of water, gas constantly condenses into liquid and desublimates, while the liquid constantly evaporates and freezes, while the solid constantly melts and sublimates. The reason for this is because going from one phase the the other requires/gives off energy. I realize you've probably gotten hundreds of comments, but considering this is youtube I'm just assuming most of them are "NO UR WRONG".

  • @InversionGameStudios I didn't think someone could be that stupid. I'll try to explain it to you so you can understand. If water's freezing point is 0 degrees and its melting point is higher, than what physical state would it exist as inbetween those two temperatures. What you're saying is that it would disappear or cease to exist. The melting points and freezing points are the same. There exists a point of temperature and pressure where H2O constantly melts and freezes and evaporates.

  • @TheFearUnlimited I didn't think anyone could be stupid enough to not know the difference between "then" and "than". You also fail to understand that x=0, y>0, allows for y to be greater than x without anything being inbetween the two.

  • @InversionGameStudios So apply the abstract concept to reality, what physical state exists between the melting point and the freezing point.

  • @InversionGameStudios So apply the abstract and incorrect concept to reality, if there is a difference between melting point and freezing point what physical state exists between the two.

  • @TheFearUnlimited I already explained this to you. There is no number between the x and y I gave, yet they are not equal.

  • @InversionGameStudios Temperature is a constant (a measure of avg kinetic energy of all the particles in a substance), therefore there is no x and y there is just x. If x=0 and y>0 y>x there is no temperature where Tfusion>Tfreeze.

  • @TheFearUnlimited aka the triple point of water ;)

  • @pingpongyul yea i was gonna finish it but i ran out of characters.

  • @InversionGameStudios It's called the triple point, look it up.

  • @InversionGameStudios Your logic is pretty flawed I'm not gonna even explain it to you.

  • Its actually A. There is a 0.001 degree difference between them.

  • @youngnedyoung What state would water be in then inbetween then?

  • @InversionGameStudios The figure is so negligible that an 'inbetween' almost doesn't exist. For it to be the same, you are stating that water would exist as both solid and liquid which can't be true as would either be melting or freezing. Therefore, there would need to be a very small difference for the molecules to decide in which direction they are going in.

  • @youngnedyoung Almost doesn't exist? That's crazy. That's a huge range. I'm sure scientists could make water in 10,000 temperatures, all of them different, and all of them in that range.

  • @InversionGameStudios so I'm right? I don't care either way - I just heard it on QI a couple of days ago and was always brought up to never doubt anything Stephen Fry says. Maybe he's wrong. I'd probably have to adjust my entire belief system though...

  • @youngnedyoung No, you're wrong. Your answer makes no sense and would be probably the biggest coincidence in the universe that the number ended up being 0.001

  • @InversionGameStudios Okay, I'm wrong. I still don't care but I'm glad you do. Have a happy new year. I'm back to school next week...

  • @youngnedyoung Me too.  My last term and I'm done my undergrad. Fuck yeah.

  • First year college/university chemistry proves just how many different ways this question can be interpreted, with different results, as so many people have pointed out with the phenomena of super cooling.

  • 40%+ of the crowd are retards. Go America.

  • RETARD. B.

  • omg you dumbass

    take water

    if it's under 0 then it freezes

    if it's above 0 then it melts

    so?! they are the same, both 0

  • @MrSoccerr you're saying that water, for example, at 10ºC melts? the normal state of qater is liquid so how does something liquid melts?

  • even 11 year olds know the answer to this question

  • He looks math teacher ~_~

  • its a broken question due to supercooled water

  • how is he a science teacher??????????????

  • @Inkspell2000 He says so at 00:33

  • To be fair this isn't as easy as it immediately looks. Those points can vary depending on the air pressure around the system, and the pressure of a system is linked linearly with the volume of a system. It is easy to think that at extreme pressures and volumes this point might change and answer B could be wrong. It would be even harder to make that call if you were actually there.

  • @moop64 can also vary on whats in the water for instance if you put some kitchen salt ( NaCl) into it the freezing temp drops while the melting temp drops aswell but alot less then the freezing point : P

  • I used to this lucky, until i took an »»───knee───►.

  • Comment removed

  • id hate to be the dumbass who voted D

  • he's a science teacher? god he is STUPID

  • @Emmie12Rainbow They aren't the same. They vary slightly. In reality the answer is A.

  • @Emmie12Rainbow whats worse is that 41% of the audience thought it was A!!!!

  • I love the music. It really sets the mood.

  • Science teacher... Substitute maybe?

  • xhurrendous and you other people who think it differs in temp, this is why its not:

    The melting poin and the freezing point represent an equilibrium, its the same with vapor and liquids or in some cases solids and vapor. So when we say meltingpoint, we dont mean a temperature when the ice (in this case) is melted but when it sort of has the ability to melt, but the same time it will have the ability to freeze. Since its an equilibrium it could go both ways. Thats why they are synonyms.

    Ellen

  • The answer is wrong... Fucking hell even on a quiz show America is still completely retarded. Think about this logically. How the hell can they be the same? The freezing point of water is 0 degrees C. The melting point of ice is like 0.3 degrees C or something really close to 0. Either way, it is still higher. How could it be the same? You're basically saying if you put an ice cube at 0.C, the moment one drip of water melted off it, it would freeze again? Jesus christ. Such a dumb nation.

  • @xHurrendous Learn some thermodynamics.

  • @xHurrendous The answer is correct (there is a difference, but its much much smaller than you suggest). Ice has the potential to melt at 0 C, but additional energy (heat) is required. This additional energy does NOT raise the temp, it is used in the phase change. The same goes for water freezing. Water has the ability to freeze at 0 C, but additional energy is lost. This doesn't lower the temp, it just completes the phase change.

  • @Chimer99 long answer like :)

  • This video actually gives me a bit of hope... 54% of Americans seem not to be completely retarded.

  • Seems that american school system is worth no more than 500 $ !

  • ah, it depends if you are a celsius or a fahrenheit guy. nyuk nyuk

  • @rickcain2320 Systeme International, bitch!

  • So if I want to make an ice cube OR melt an ice cube I only need one temp.

    yay science!

  • classic america

  • america doesnt grow its own inteligence .. it colects it from all the other states ;)

  • this question is somewhat hard,shut up people

  • it was a trick question that was mean. made him look like a dumbass though.

  • @MrLukasWilson How is that a trick question? I would've asked them though: what sort of ice?

  • well, there goes his credibility as a teacher.

  • This is an indictment of the American education system...

    

  • Technically the melting point is either the same or higher since due to the unusual chemistry of water nucleation is required for water to freeze, meaning water can be cooled to a temperature lower than it's melting point and still be a liquid (not freeze) yet only be melted at the melting point, See: Super Cooling.

  • @MaicahRu Well thats not true if if you put enough presure one ice you could put ice in to water that's way beyond the freezing point.

  • @MaicahRu rubbish, a better approximation is that they are the same

  • yet another British TV programme stolen by our less intelligent friends in America

  • @billybob123748 theres a wiki page with the list

  • Comment removed