Air at 100 psi and 75°F fills a piston-cylinder assembly to a volume of 0.55 ft3. The air expands, in a constant-temperature process, until the pressure is 30 psi. (The constant-temperature process with a gas can be modeled as a polytropic process with n=1.) Determine the work done by the air as it expands.

Given: P1 = 100 psi; V1 = 0.55 ft3; P2 = 30 psi

What will be an ideal response?


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