Question

Do all substances change from solld to
liquid and liquid to gas on heating explain
full answer​

Answer 1

Explanation:

1.No, all substances cannot change from solid to liquid and liquid to gas on heating.

2.Some substances changes directly from solid to gas on heating and this process is called sublimation.

3.Only some substances changes like that eg.dry ice and camphor.

Answer 2

Answer:

No, all substances don't change from solid to liquid and then to gas on heating. Some substances directly change into gaseous state when it is heated. They are called sublime. For example : camphor. usually when solids are heated they melt and become liquid. Then on further heating the liquid boils to form gas. When we keep a piece of ice in a dish it melts and the water so formed evaporates after sometime. However there are some substances which on heating directly turn into gases from solids. Camphor, iodine crystals and carbon dioxide are such substances. Such substances are called sublimatory substances and this process is called sublimation