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Charles Law

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Uploaded by on Jan 29, 2007

A chemical demonstration illustrating the effect of temperature on the volume of a gas. Carleton University, Ottawa, Canada.

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Howto & Style

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Uploader Comments (robertburkottawa)

  • Professor, if liquid nitrogen is capable of freezing things instantly and causing the oxygen to condense, how is it that you can touch it with your bare hands immediately after pouring it onto the glove? It couldn't have warmed that fast, could it? (I am not a Chemistry or Science major).

    I'll see if my Professor can incorporate liquid nitrogen into our Poli Sci lectures. Maybe during a bit on Russia :P

  • Liquid nitrogen, although very cold, is at its boiling point. Thus it takes very little heat to evaporate it. Small amounts on your hand will not do any damage because the droplets instantly evaporate.

Top Comments

  • Teachers like this man can actually make school worthwhile!!!

  • wonderful teacherrr

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All Comments (43)

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  • BURN THE WITCH!

  • nice bald spot.

  • @robertburkottawa If it takes very little heat to vaporize it, how does it stay in it's liquid state so easily while in the bottle?

  • Yeah, so much easier and funner to learn when you get demonstrations. We do the most stupidist and boringist labs ever.

  • @robertburkottawa leidenfrost effect

  • @StevenRNicholls(in regards to the professor's rebuttal), that's why you sir, are not a science major; and are wasting your invaluable time and money on an education that's meant for spoiled pot heads.

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