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Consider the following figure. (The x axis is marked in increments of 0.25 m3.)
P (Pa)
6 x 106
4 × 106
2 × 106
-V (m³)
(a) Determine the work done on a gas that expands from i to fas indicated in the figure.
(b) How much work is performed on the gas if it is compressed from f to i along the same path?

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