Problem related to equilibrium temperature
Lead pellets, each of mass 1.20 g, are heated to 200°C. How many pellets must be added to 450 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container.
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Assuming that no energy is lost by heat to the surroundings, determine the total entropy change of the horseshoe-plus-water system.
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