question_answer

   (i) Conversion of solid to vapours is called sublimation. Name the term used to denote the conversion of vapours to solid. (ii) Conversion of solid state to liquid state is called fusion, what is meant by latent heat of fusion?      

Answer:

                  (i) It is also known as sublimation.             (1) (ii) The amount of heat energy required to change 1kg of a solid into liquid at atmospheric pressure at its melting point is known as the latent heat of fusion.             (1)