A gas in a laboratory vessel is cooled. If all the molecules of the enclosed gas cease to have any motion, what is temperature in the vessel

Question

photon336 · Answer

For starters, when a gas is cooled it's going from Gas --> liquid --> solid. You're removing heat from the system, so i'm guessing that entropy is going down. If all the molecules cease to have any motion, i guess it would be 0K, but this really isn't possible.  @Rushwr @Woodward what do you guys think?

anonymous · Answer

Yeah if all the motion of the molecules ceases... It has to be absolute zero. Weird question...

ciarán95 · Answer

Exactly @Woodward and @Photon336  , the only point at which the molecules would stop moving or vibrating after being converted to a solid is at absolute zero (-273.15 degrees Celsius). Technically, I don't believe that it's actually possible to reach this point, although there's a lot of research ongoing at the moment into understanding the behavior of molecules at really low temperatures.

Have you received any feedback as to what the answer is @jazmyn_12 or have you any ideas yourself?

photon336 · Answer

@Ciarán95 yeah I agree with @Woodward it's a weird question was asked in a strange way