Can a Gas Remain the Same Temp When Compressed?

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The discussion centers on a chemistry question regarding the behavior of gases under compression. The statement in question is whether a gas's temperature always increases when compressed. It is clarified that this is not necessarily true; if a gas is compressed adiabatically (without heat exchange), its temperature will rise. However, if the compression occurs slowly enough, allowing the gas to equilibrate with its surroundings, the temperature may remain constant or even decrease. This highlights the importance of the method of compression in determining the temperature change of a gas.
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So today I came across this question:
2) CHEMISTRY Multiple Choice Which of the following statements is NOT true:

W) an ideal gas cannot undergo condensation
X) the less mass a particle has, the faster it will effuse
Y) when a gas is compressed, its temperature always increases
Z) a gas is easier to compress than a liquid

ANSWER: Y) WHEN A GAS IS COMPRESSED, ITS TEMPERATURE ALWAYS INCREASES

I just can't think of a case where this would be false. Is it possible for a gas to remain the same temperature or even cool when it is compressed?
 
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It depends on whether you compress the gas adiabatically or not. If you compress it infinitely slowly is will equilibrate with the outside temperature and its temperature will not increase.
 

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