Answer to Question #88941 in Physics for Murari

Question #88941
Why air expanding gets cooler
And if hot air expands in vacuum then would it cool or not
1
Expert's answer
2019-05-06T10:10:42-0400

An air expanding gets cooler because the frequency of collissions between the molecules of the gas decreases when air expands.

When hot air expands in vacuum its temperature doesn't change.


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