Silver pellets with a mass of 1.0 g and a temperature of 85 °C are added to 220 g of water at 14 °C (a) How many pellets must be added to increase the equilibrium temperature of the system to 25 °C? Assume no heat is exchanged with the surroundings, (b) If copper pellets are used instead, does the required numberof pellets increase, decrease, or stay the same? Explain, (c) Find the number of copper pellets that are required.
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