Particle Motion and Heat Practice Test

A pot of water is heated on a stove. At first (about 25°C), the particles are close together and slide past each other (liquid). After heating to 100°C, the water boils and becomes a gas above the pot. How does adding thermal energy explain this change in particle motion?

A student places a cold soda can (5°C) on a table. After a while, it warms to room temperature (25°C). In a particle model of the liquid soda, what change should be shown to match the temperature increase?