Q. what is meant by latent heat of fusion?
Ans. The amount of heat energy required to change 1 kg of solid into liquid at atmospheric pressure at its melting point is known as latent heat of fusion.
[ Is this answer correct or wrong ]
Kindly refer to the link given below to know about the definition of latent heat of fusion :
https://www.meritnation.com/ask-answer/question/what-is-latent-heat-of-fusion-and-vaporisation/matter-in-our-surroundings/5072126
https://www.meritnation.com/ask-answer/question/what-is-latent-heat-of-fusion-and-vaporisation/matter-in-our-surroundings/5072126