Air at 427 degrees celcius and 400 kPa with a volume flow of 1m3/s runs through an adiabatic turbine with an exhaust pressure of 120 kPa. Neglect kinetic energies and use average constant specific heats. Find the lowest and highest possible exit temperatures. For each case, also find the rate of work and rate of entropy generation.

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Q: Question attached

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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.