Question

What is sublimation.With the help of an activity describe the sublimation of a solid substance

Answer 1

sublimation is the process of change of state directly from solid to gas or vice versa without undergoing the liquid state. examples are carbon dioxide, ammonium chloride, camphor,etc.

Answer 2

The process by which the solid state of a product is directly converted into gas is called sublimation. example: camphor,dry ice,water etc..,

Activity:

China dish, Bunsen burner, camphor

Procedure :
crush the camphor into the China dish and heat it over the flame with the help of Bunsen burner. Heat for a few minutes the solid camphor turn into liquid state. Again heat it for a few minutes the liquid state of camphor will evaporate and turn into gas

Hence, the sublimation process is proved by this experiment...

Hope it helps..