A 0.620 kg PYREX® glass calorimeter contains 0.400 kg of water at 12.8°C (both in thermal equilibrium). At that time, 1,000 kg of solid mercury is added at a temperature of -39°C, which corresponds to the melting point of mercury. a) Describe which parts of the system will give up thermal energy and which will gain thermal energy. Discuss which elements require less energy for phase changes or temperature changes.

A 0.620 kg PYREX® glass calorimeter contains 0.400 kg of water at 12.8°C (both in thermal equilibrium). At that time, 1,000 kg of solid mercury is added at a temperature of -39°C, which corresponds to the melting point of mercury. a) Describe which parts of the system will give up thermal energy and which will gain thermal energy. Discuss which elements require less energy for phase changes or temperature changes.