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iction between the piston and cylin -addle-wheel shaft. В 35

iction between the piston and cylin -addle-wheel shaft. В 35

Refrigeration and Air Conditioning Technology (MindTap Course List)
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.
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3- A piston cylinder device is equipped with a paddle-wheel driven by an external motor and is filled with gas. The walls of the cylinder, the piston, and the paddle-wheel and its shaft are all made of a material which is very good insulator. The system contains 50 g of gas.Initially the gas is in state A. The paddle-wheel is then operated, but the piston is allowed to move to keep the pressure constant. Then the paddle-wheel is stopped, and the system is found to be state B. There is very little friction between the piston and cylinder walls. Determine the energy transfer in joules along the paddle-wheel shaft. State A В P, bars 35 35 v, m/kg u, J/g h/ J/g 7.11 19.16 22.75 47.64 47.64 164.69
Transcribed Image Text:3- A piston cylinder device is equipped with a paddle-wheel driven by an external motor and is filled with gas. The walls of the cylinder, the piston, and the paddle-wheel and its shaft are all made of a material which is very good insulator. The system contains 50 g of gas.Initially the gas is in state A. The paddle-wheel is then operated, but the piston is allowed to move to keep the pressure constant. Then the paddle-wheel is stopped, and the system is found to be state B. There is very little friction between the piston and cylinder walls. Determine the energy transfer in joules along the paddle-wheel shaft. State A В P, bars 35 35 v, m/kg u, J/g h/ J/g 7.11 19.16 22.75 47.64 47.64 164.69
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