A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 80 lbf/in², v₁ = 4 ft³/lb to a final state where p2 = 20 lbf/in², v₂ = 12 ft³/lb. Determine the polytropic exponent, n, and the amount of energy transfer by work, in Btu, for the process.

A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 80 lbf/in², v₁ = 4 ft³/lb to a final state where p2 = 20 lbf/in², v₂ = 12 ft³/lb. Determine the polytropic exponent, n, and the amount of energy transfer by work, in Btu, for the process.

College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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Question

A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 80 lbf/in², v₁ = 4 ft³/lb to a final state where p2 = 20
lbf/in², v₂ = 12 ft³/lb.
Determine the polytropic exponent, n, and the amount of energy transfer by work, in Btu, for the process.

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