1. Ten cu ft of air at 300 psia and 400°F is cooled to 140°F at constant volume. What are (a) the final pressure, (b) the work, (c) the change of internal energy, (d) the transferred heat, (e) the change of enthalpy, and (f) the change of entropy? O-0.5813 BTU/lbm.R O -0.8513 BTU/lbm.R O 0.5813 BTU/lbm.R O 0.8513 BTU/lbm.R

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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.