An aluminum calorimeter of mass 65 g, has 162 g water, both at a temperature of 19°C. A 183-g piece of Copper originally kept in boiling water (T = 100°C) is transferred to the calorimeter. Calculate the final equilibrium temperature of the mixture in °C. Specific Heats: Al = 900 J/kg, water =4186 J/g, Cu = 387 J/kg.

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