Question

If a gas expands isothermally then
The number of molecules of the gas decreases
The kinetic energy of the gas molecules decreases
The kinetic energy of the gas molecules remains
the same
The number of molecules of the gas increases​

Answer 1

Answer:

When an ideal gas is compressed adiabatically (Q=0), work is done on it and its temperature increases; in an adiabatic expansion, the gas does work and its temperature drops. ... Nevertheless, because work is done on the mixture during the compression, its temperature does rise significantly.

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