A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 65 lbf/in², v₁ = 4 ft³/lb to a final state where p₂ = 20lbf/in², v₂ = 11 ft³/lb.Determine the polytropic exponent, n, and the amount of energy transfer by work, in Btu, for the process.Step 1Your answer is correct.Determine the polytropic exponent, n, for the process.n = 1.16HintStep 2Your answer is incorrect.Determine the amount of energy transfer by work, in Btu, for the process.W = i 462.623BtuToutbodloAttempts: 1 of 4 used

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Answered: A closed system consisting of 10 lb of…

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 8P

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A steel bar is 2 m long at room temperature 35°C and is then heated to 85°C. The coefficient of thermal expansion is a = 14x10-6 m/m/°C. Determine the change in length of the bar if it is free to expand. O a. 1.68x10-3 m O b. 1.40x10-3 m O. 1.05x10-3 m O d. 2.07x10-3 m
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