20. Heat and Temperature
Advanced Calorimetry: Equilibrium Temperature with Phase Changes
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ANSWERS OPTIONS
A
T = 0 °C
B
T = 3 °C
C
T = 5 °C
D
T = 10 °C
In an experiment, a student releases 10 pieces of one-dollar coins heated to 140 °C into a thermally insulating container of mass 50 g and specific heat capacity 420 J/kg•°C. The container is filled with a mixture of ice (5 g) and water (200 g) at the same temperature. Each coin has a specific heat of 390 J/kg•°C and a mass of 8.1 g. Determine the final temperature (T). Assume that the container does not allow heat exchange with surroundings.