What occurs to molecular bonds during vaporization?

During vaporization, the process involves the transition of a substance from a liquid phase to a gaseous phase. In this context, molecular bonds refer to the intermolecular forces holding the liquid molecules together. As a substance heats up and reaches its boiling point, the energy provided to the molecules overcomes these intermolecular forces.

When vaporization occurs, the thermal energy allows the molecules to move apart from one another, effectively breaking the bonds that keep them in a liquid state. This is why the correct answer indicates that bonds are removed. The energy input during vaporization is sufficient to break the interactions between the molecules, allowing them to escape into the gas phase. In this sense, the bonds do not remain unchanged or become strengthened; instead, they are actively disrupted, leading to the formation of gas from a liquid.