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Instructions: Show your complete solutions to the problem and highlight your final answers.

Ensure that you have the right units with your answers.

1. During an expansion process, the pressure of a gas changes from 15 to 100 psia

according to the relation P = aV+ b, where a = 7.5 psia/ft³ and b is a constant. If the

initial volume of the gas is 7.5 ft³, calculate the work done during the process.

Fig: 1