Describe the amount of energy transfer by work
A closed system consisting of 14.5 lb of air undergoes a polytropic process from p1 = 80 lbf/in^2, v1= 4 ft^3/lb to a final state where p2 = 20 lbf/in^2, v2= 11ft^3/lb. Determine the amount of energy transfer by work, in Btu, for the process.
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