Question

Which of the following groups of phase changes occur only when heat energy is removed or released from water.

a. melting, evaporation, sublimation
b. condensation, freezing, deposotion
c. sublimation, deposition, melting
d. melting, condensation, sublimation

Answer 1

The answer is; B

When energy is removed from the water, it means that the molecules lose their energy and they move less kinetically. This way, the energy in the molecules cannot overcome the intermolecular forces of attraction and begin to come together. This causes the water to move from a higher energy phase to a lower energy phase (such as from gas - liquid -- solid).