Phase changes: A chunk of ice (T = -20°C) is added to a thermally insulated container of cold water (T = 0°C). What happens in the container?
A) The ice melts until thermal equilibrium is established.
B) The water cools down until thermal equilibrium is established.
C) Some of the water freezes and the chunk of ice gets larger.
D) None of the above things happen.

Question

Quizplus · Accepted Answer

When a chunk of ice at -20°C is added to water at 0°C, heat flows from the warmer water to the colder ice. This causes some of the water to freeze, adding to the ice mass, until thermal equilibrium is reached.

Phase Changes: a Chunk of Ice (T = -20°C) Is