In a gas apparatus, it was recorded that the expansion index was 1.26 and the molar mass of gas is 26 kg/kmol. The gas is taken as a perfect gas and expands reversibly from 727 ˚C, 0.003 m3 to 2 ˚C, 0.6 m3 , according to a linear law. 1. the change in specific entropy, (3) 2. the heat supplied, and (2) 3. the work output

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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.