Question

the temperature of a substance is really a measure of the thermal energy of the particles in that substance. the speed of the particles is determined by the kinetic energy of the particles. based on this, complete the sentences below. 1. as thermal energy of a substance increases, the kinetic energy of the particles a. increases b. decreases c. stays the same 2. therefore, we can say that temperature is really just a measure of the _______________ of the particles in a substance. a. kinetic energy b. potential energy 3. the process of solid ice becoming water is called a. evaporation b. freezing c. melting 4. the process of water becoming water vapor is called a. evaporation b. freezing c. melting 5. the process of water becoming ice is called a. evaporation b. freezing c. melting

Explanation:

1. Thermal energy is related to the kinetic energy of particles. As thermal energy increases, so does kinetic energy.
2. Temperature is a measure of the average kinetic energy of particles in a substance.
3. The change from solid to liquid is melting.
4. The change from liquid to gas is evaporation.
5. The change from liquid to solid is freezing.

Answer:

1. a. increases
2. a. Kinetic energy
3. c. Melting
4. a. Evaporation
5. b. Freezing