A Conversation for The Three Laws of Thermodynamics
Researcher 211760 Started conversation Dec 14, 2002
Can someone answer what happens to the enthropy of a gas that is heated?
U195408 Posted Dec 19, 2002
a maths definition of the change in entropy is:
(heat added)/(temperature at which it is added)
So heating a gas at constant temperature will increase the entropy. Basically, the idea is that as the gas heats up, the distribution of velocities that the constituent particles have becomes broader - the gas molecules have a wider range of velocities. This is the so-called increased disorder that comes with increasing entropy.
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