Physics

Problem

A gas undergoes a closed cycle consisting of three successive processes: 1.

A \rightarrow B

: The state changes linearly from

A\,(1.0\times10^{5}\,\text{Pa},\;0.010\,\text{m}^3)

B\,(2.0\times10^{5}\,\text{Pa},\;0.030\,\text{m}^3)

. 2.

B \rightarrow C

: The volume decreases at constant pressure

2.0\times10^{5}\,\text{Pa}

until it reaches

V=0.010\,\text{m}^3

. 3.

C \rightarrow A

: The pressure decreases at constant volume

0.010\,\text{m}^3

back to the original pressure. What is the net work done ON the gas over one complete cycle? a)

-1.0\times10^{3}\,\text{J}

0\,\text{J}

1.0\times10^{3}\,\text{J}

7.0\times10^{3}\,\text{J}