sorry for the bad quality. v is on the x-axis and p is on the y-axis. this is th

Question

sorry for the bad quality. v is on the x-axis and p is on the y-axis. this is the SAME figure used by question 70 and 71.

70) A cyclic process is carried out on an ideal gas such that it returns to its initial state at the end of a cycle, as shown in the pV diagram in the figure. If the process is carried out in a clockwise sense around the enclosed area, as shown on the figure, then the magnitude of the enclosed area represents
A) the heat that flows out of the gas. B) the work done on the gas.
C) the work done by the gas. D) the heat added to the gas.

71) A cyclic process is carried out on an ideal gas such that it returns to its initial state at the end of a cycle, asmshown in the pV diagram in the figure. If the process is carried out in a clockwise sense around the enclosed area, as shown on the figure, then the magnitude of the enclosed area represents

A) the heat that flows out of the gas. B) the work done on the gas.
C) the work done by the gas. D) the heat added to the gas.

Explanation / Answer

70 C) the work done by the gas.

71 C) the work done by the gas.

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