Matter and its Construction: Heat of Fusion and Vaporization

The video tutorial explains the concepts of heat of fusion and heat of vaporization. Heat of fusion is the energy required to change a solid to a liquid at its melting point without changing temperature or pressure. An example is melting ice, which remains at 0°C during the process. Heat of vaporization is the energy needed to convert a liquid to a gas at its boiling point, such as water boiling at 100°C. The video highlights that these heat values differ for various substances.

What is the heat of fusion and how does it relate to the phase change of a substance?

Explain the process that occurs when a solid, like ice, is heated to its melting point.

What happens to the temperature of water when it is heated to its boiling point?

Define the heat of vaporization and its significance in the phase change from liquid to gas.

How do the heat of fusion and heat of vaporization differ for various substances?