A 2.18 kg of air at 22.89 C underwent an isobaric process wherein its initial volume of 1.64 m3 was doubled. Determine the change in entropy (kJ/K) of the system. Consider the individual gas constant, specific heat at constant pressure, and specific heat ratio of air as 0.287 kJ/kg-K, 1.00 kJ/kg-K, and 1.4 respectively

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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.