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I How can gasses be cool?

  1. Dec 4, 2016 #1
    I was wondering how can a gas be a gas but at the same time be cold? I thought gas molecules moved faster than liquid ones do, and yet some gasses are cooler than some liquids. I thought kinetic energy averages dictated temperature??
  2. jcsd
  3. Dec 4, 2016 #2


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    "Gas/liquid" denotes "phase" which is unrelated to temperature.
  4. Dec 4, 2016 #3


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    In the gas phase, the density of molecules moving around at high speed is very small compared to the liquid phase.
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