Thermodynamics: Heat Engine
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A heat engine (thermodynamic cycle) with a fixed amount of working gas is shown in diagram. If the gas temperature at point 3 is 400 K, then how many moles of gas are in the engine? What is the temperature at point 2? Is process stroke 2,3 a heat intake or cooling stroke? How much work is done by process stroke 2,3? How much net work is produced for the whole cycle?
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Solution Summary
This solution uses the formula PV=nRT and includes complete calculations and answers. The net work for the whole cycle is determined.
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1) Use PV=nRT (R = 8.315 J/molK)
n = PV / RT
In this case:
T = 400K
P = 200e3 Pa
V = 0.005m^3
n = (200e3)(0.005) / (8.315 * ...
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