The process below shows a reversible two-step path for expansion of 0.050 mole of monatomic ideal gas from (1) 3.0 bar, 5.0 × 104 m³ to (2) 1.0 bar, 2.0 x 103 m³. Calculate the change in entropy of the gas (J-K1) (Hint: see additional problems in Entropy packet). P 2 V

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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.