Question

a. boiling and melting point​

Answer 1

Answer:

• The boiling point is the temperature at which a material changes from a liquid to a gas (boils) while
• the melting point is the temperature at which a material changes from a solid to a liquid (melts). Keep in mind that a material's melting point is the same as its freezing point.

Answer 2

Answer:

Boiling point - The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.

Melting point - The temperature at which solid changes its state to liquid at atmospheric pressure is called the melting point of that liquid. This is the point at which both liquid and solid phase exists at equilibrium.