Question

what happens to the particles of a substance when you increase heat? the particles do not change. the particles move more slowly the particles disappear completely the particles move more quickly

Explanation:

When heat is added to a substance, the thermal energy causes the particles to gain kinetic energy. Kinetic energy is related to the speed of the particles' motion. So, an increase in heat leads to an increase in the speed of the particles' movement.

Answer:

The particles move more quickly