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IFoS · Paper I · Thermal & Statisticalifos-2020-subject-04-001

Thermodynamic entropy — UPSC Physics Optional IFoS 2020 Paper I

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10\text{ g} of water at 60\text{ }^\circ\text{C} is mixed with 30\text{ g} of water at 20\text{ }^\circ\text{C}. Will the entropy of the system increase or decrease? Calculate the change.

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