Question

question 12 of 27
what happens to water as it boils?
a. the intermolecular forces strengthen and lock the molecules in place.
b. the average kinetic energy of the molecules increases as energy is absorbed.
c. the energy that is absorbed overcomes the intermolecular forces that hold the molecules together.
d. the average kinetic energy of the molecules decreases as energy is released.

Explanation:

When water boils, heat energy is absorbed. This energy overcomes the intermolecular forces (such as hydrogen - bonding in water) that hold water molecules together in the liquid state, allowing them to transition into the gaseous state. The average kinetic energy of the molecules increases as heat is absorbed during boiling, but the key event is the breaking of intermolecular forces.

Answer:

C. The energy that is absorbed overcomes the intermolecular forces that hold the molecules together.