If you start with a substance as a solid, what will happen to the molecules as you add thermal energy (heat)?
A. molecules slow down due to an increase in kinetic energy
B. molecules speed up due to an increase in potential energy
C. molecules speed up as more thermal energy is added
D. molecule movement remains the same

C. molecules speed up as more thermal energy is added

Explanation:

The molecules will simply speed up as more thermal energy is added to the solid.

Thermal energy is a form of kinetic energy which is set in motion.

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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v 154.9= 0.9 length length s little over 154.9cm