2- 1 kg of water in a piston-cylinder assembly, T1 = 300 ° C, P1 = 200 kPa, passes a process to its final state at constant pressure T2 = 150 ° C by throwing heat from its initial state to the surrounding environment. At the end of this process, determine (a) Piston boundary work, (b) The amount of heat discharged from the piston to the surrounding

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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.