A sample of gas was first compressed from V 1 to V 2 at a constant pressure of P 1 . The sample was then cooled so that the pressure went from P 1 to P 2 while the volume remained constant a

Question

A sample of gas was first compressed from $V_{1}$ to $V_{2}$ at a constant pressure of $P_{1}$ . The sample was then cooled so that the pressure went from $P_{1}$ to $P_{2}$ while the volume remained constant at $V_{2}$ . Finally the sample was allowed to expand from $V_{2}$ back to $V_{1}$ while the pressure increased from $P_{2}$ back to $P_{1}$ as shown in the diagram.

Options:

Answer:

B

Solution:

An anticlockwise cycle on the P-V diagram gives negative work done by the system,

which means positive work done on the system, equal to the enclosed area A.

TestHub · Accepted Answer

An anticlockwise cycle on the P-V diagram gives negative work done by the system, which means positive work done on the system, equal to the enclosed area A.

Physics - Heat & Thermo Question with Solution | TestHub

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