Question

What is the difference between melting and sublimation​

Answer 1

Melting is the process of changing a solid into a liquid by adding heat. The temperature at which melting occurs is called the melting point, and it is different for different substances. When a substance melts, its molecules or atoms gain enough energy to overcome the attractive forces holding them in a fixed position in the solid state and move freely, resulting in a change from a solid to a liquid state.

Sublimation, on the other hand, is the process of changing a solid directly into a gas without first becoming a liquid. This occurs when a solid substance gains enough energy from its surroundings to break the bonds between its molecules or atoms and become a gas. The temperature at which sublimation occurs is called the sublimation point, and it is different for different substances. Examples of substances that undergo sublimation include dry ice (solid carbon dioxide) and mothballs (solid naphthalene).

Answer 2

Melting:

A substance changes from solid to liquid on applying heat...

Sublimation:

A substance changes from solid to gas directly (without undergoing liquid state) on applying heat...