ifos • paper_1 • thermal_physics
[UPSC IFoS 2020] Thermodynamics (Q47, 8M)
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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