Discovering the Science: Understanding Cool Gases and their Temperature

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SUMMARY

The discussion clarifies the relationship between gas phases and temperature, emphasizing that the phase of a substance (gas or liquid) does not directly correlate with its temperature. It highlights that gas molecules, despite moving faster than liquid molecules, can exist at lower temperatures due to their lower density. The kinetic energy of gas molecules is indeed a factor in determining temperature, but the phase distinction is crucial in understanding these dynamics.

PREREQUISITES
  • Understanding of kinetic energy and its relation to temperature
  • Basic knowledge of gas and liquid phases
  • Familiarity with molecular density concepts
  • Introduction to thermodynamics principles
NEXT STEPS
  • Research the principles of thermodynamics and their application to gas behavior
  • Explore the concept of molecular density in different phases of matter
  • Study the kinetic molecular theory and its implications for temperature
  • Investigate the properties of gases at various temperatures and pressures
USEFUL FOR

Students of physics, chemistry enthusiasts, and anyone interested in the properties of gases and their behavior under varying temperature conditions.

SteveManPhy076
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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??
 
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SteveManPhy076 said:
I thought kinetic energy averages dictated temperature?
Yes.
SteveManPhy076 said:
I thought gas molecules moved faster than liquid ones do, and yet some gasses are cooler than some liquids.
Yes.

"Gas/liquid" denotes "phase" which is unrelated to temperature.
 
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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