FOOD TECHNOLOGY

Detailed explanation-1: -The latent heat associated with melting a solid or freezing a liquid is called the heat of fusion; that associated with vaporizing a liquid or a solid or condensing a vapour is called the heat of vaporization .

Detailed explanation-2: -There is no temperature change until a phase change is completed. The temperature of a cup of soda and ice that is initially at 0 °C °C stays at 0 °C °C until all of the ice has melted. In the reverse of these processes-freezing and condensation-energy is released from the latent heat (see Figure 11.9).

Detailed explanation-3: -For example, the latent heat of vaporization of water is 540 cal/g and the latent heat of freezing of water is 80 cal/g.