Enthalpy

Understanding why enthalpy can be viewed as "heat content" in a constant pressure system.

Category:

Education

Tags:

• enthalpy
• thermodynamics
• chemistry

[letsgotowar1]

i would "like" this a 1000x if i could

[FernaTheBarbarian]

lmfao, "If i had my chemistry set at the beach and have me beaker of something and started throwing stuff into it"

This guy is so funny :D

[mrfrankincense]

The H is for the Greek capital Eta, not capital Aitch. It's H because Enthalpy begins with an Eta sound.

[celestialjellyfish]

@ccrunnerx92x W(by system) = -W(on system) which is Newton's Third Law of Motion (you are assuming the system obeys the assumption s of Ideal Gases, so particle collisions are elastic).

He is using the work done BY the system, therefore it is negative. You can substitute in the work done ON the gas and hence it would be...

dU=Q+W :)

[TheNewbSpawn]

For all of you who want to learn like this, you're all great people. There's a website called Academic Earth which has entire collections and libraries of lectures, including the ones from the Khan Academy (even this series in the Chemistry section). I suggest you all check it out, it's much more organised than here.

[wc7vdaner]

i spent all night trying to get this. it took this video for me to actually get it

[bomberfun1]

What about constant volume? IT doesn't make sense because you could make the volume constant too, and have delta H = Q.

[reeseleighable1]

...TT

[Souliee]

@letsgotowar1 You could! Create 1000 accounts and press like for each of them. So it is possible, the problem is; Would you?

[ElleonOnline]

You have no idea how much appreciation I have for your videos. I'm practically self-teaching myself by watching your videos and I swear, I'm learning more than I'm lectured in class.