Question

Ayan warms some hot chocolate in a microwave oven which reasoning explains how the particles that make up the hot chocolate different as the temperature increases

Answer 1

Answer:

• They move farther apart.

Explanation:

The answer choices are:

• They move slower.

• They have less energy.

• They move farther apart.

• They are arranged in a pattern.

Solution

As per the kinetic theory of matter, matter is made up of small particles, namley atoms, molecules, ionic units, or ions, that are in constant motion. In solids, the particles just vibrate around some fixes position. In liquids and gases, the particles have translational movement.

As the particles of a substance get hotter, i.e. as their temperature increses, their kinetic energy increase: they move faster. Thus, the particles move farther appart and occupy more space. That explains why gases are less dense than liquids, and liquids are less dense than solids.