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Homework Statement
If a piston is compressed, how is the temperature affected?
Homework Equations
U=Q + W
The Attempt at a Solution
My soln: I thought that U=k.e. = (3/2)nRT=(3/2) pV ?
Since PV is constant (P1V1=P2V2), shouldn't temperature be constant?
Answer sheet: My answer sheet says that Q=0 since piston is insulated. and U=W. Since it is compressed, work is done on the gas, increasing its U, which increases T.
Which answer is correct?