The latent heat of water is heat required for phase change of water without change in temperature of water. When there is transition of state from liquid to solid and gas to liquid, during that time heat will be released (exothermic). When there is transition of state from liquid to gas and solid to liquid, during that time heat will be absorbed (endothermic).

generally latent heat of water is of two types

• latent heat of fusion
• latent heat of vaporization

Formula to calculate latent heat

L=Q/M