A Carnot Power Cycle Operates on 2 lb of air between the limits of 70°F and 500°F . The pressure at the beginning of the isothermal expansion is 400 psia and at the end of isothermal expansion is 185 psig. Determine a.the volume at the end of the isothermal compression b.Change in entropy during the isothermal process c.heat added

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A: ηcarnot=1-TLTH         =1-4001200ηcarnot=0.667=66.7%  a). Q˙H=600KW   ,   Q˙C=400KW   W˙NET =200KW…

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.