Find the total change in entropy if 2kg2kg of ice at 0.0∘C0.0∘C is mixed with 25kg25kg of water at 20∘C20∘C. Take the specific heat capacity of water to be 4186J/(kg.K)4186J/(kg.K) and the latent heat of fusion of ice to be 3.35×105J/kg3.35×105J/kg.

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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.