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NCERT Exemplar Solutions Class 9 Science Solutions for Matter in our Surroundings - Exercise in Chapter 1 - Matter in our Surroundings

Question 22 Matter in our Surroundings - Exercise

(a) Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.

(b) Conversion of solid-state to liquid state is called fusion; what is meant by the latent heat of fusion?

used to denote the conversion of vapour to solid.

Answer:

a) A deposition is the term used to denote the conversion of vapour to solid.

b) The amount of heat energy released or absorbed when a solid change to liquid at atmospheric pressure at its melting point is known as the latent heat of fusion.

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