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In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A chunk of silver weighing 19.63 grams and originally at 97.31 °C is dropped into an insulated cup containing 77.55 grams of water at 21.64 °C The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.82 J/°C. Water Temp?