Which statement best describes the 'energy threshold' for a phase change?

The temperature at which any substance will immediately boil.

The point where molecular attraction completely disappears.

The amount of kinetic energy needed to overcome molecular forces.

The external pressure required to keep a substance in its current state.

If a substance's molecules had zero mutual attraction, what would be the most likely consequence?

The substance could not exist as a gas.

The substance would not form liquid or solid phases.

An infinite amount of energy would be needed to melt it.

The substance would require extremely low temperatures to boil.

Their kinetic energy increases.

Their molecular attraction strengthens.

They immediately break apart into a gas.

The molecules' kinetic energy has not surpassed the energy threshold.

The molecules have completely stopped moving.

Molecular attraction has been eliminated by the heat.

The substance has reached its maximum possible temperature for that phase.

The water must first absorb enough energy for its molecules to overcome their mutual attraction.

The heat from the stove is not hot enough to cause a phase change in water.

The molecules must first decrease their kinetic energy before they can boil.

The pressure in the room is preventing the molecules from escaping as a gas.