Question

Name the process in which a substance directly changes into gas from solid without changing into liquid. Give some examples.

Answer 1

1. The process in which a substance directly changes into the gaseous state from the solid state without changing into the liquid state is known as sublimation.
2. When these solids are heated, their particles move so quickly that they separate completely to form vapour.
3. Camphor and iodine can undergo sublimation.