22. The First Law of Thermodynamics
Work Done Through Multiple Processes
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How much work is done on a gas that expands from A to B along the path shown below?
A gas with an initial volume of 0.2 m3 is heated at constant volume, and the pressure increases from 2×105 Pa to 5×105. Then, it compresses at constant pressure until it reaches a final volume of 0.12 m3. Draw the two processes in the PV diagram below and find the total work done by the gas.