Question

Which statement is the best description of the energy found in molecules of water?
A. Colder molecules have more kinetic energy
B. Hotter molecules have more kinetic energy
C. Colder molecules have more thermal energy
D. A molecule's temperature is not connected to its energy

Answer 1

The best description of the energy found in molecules of water is:

**B. Hotter molecules have more kinetic energy.**

In general, as the temperature of a substance increases, the kinetic energy of its molecules also increases, leading to faster molecular movement.