Experiment to determine the specific latent heat of vaporization for water. Electric power supply = 2 kW. Time taken = 5 minutes. Initial reading of the electronic balance = 685 g Final reading of the electronic balance = 565 g Mass of water vaporized, m = ………… Energy supplied by the heater, Q = Pt = ……….. Specific latent heat of vaporization: 11. Applications of Specific Latent Heat • Drinks can be cooled by adding in several cubes of ice. When ice melts a large amount of heat is absorbed and this lowers the temperature of the drink. • The freshness of fish and meat can be maintained by placing them in contact with ice. With its larger latent heat, ice is able to absorb a large quantity of heat from the fish as it melts. Thus, food can be kept at a low temperature for an extended period of time. • Water has a large specific latent heat of vaporization. This property enables steam to be used for cooking by the method of steaming. When steam condenses on the food, the latent heat is released directly onto the food enables the food to be cooked at a faster rate. • Our bodies feel cool after sweating. This is because latent heat of vaporization is absorbed from the body when sweat evaporates. As a result, the body is cooled by the removal of
Experiment to determine the specific latent heat of vaporization for water. Electric power supply = 2 kW. Time taken = 5 minutes. Initial reading of the electronic balance = 685 g Final reading of the electronic balance = 565 g Mass of water vaporized, m = ………… Energy supplied by the heater, Q = Pt = ……….. Specific latent heat of vaporization: 11. Applications of Specific Latent Heat • Drinks can be cooled by adding in several cubes of ice. When ice melts a large amount of heat is absorbed and this lowers the temperature of the drink. • The freshness of fish and meat can be maintained by placing them in contact with ice. With its larger latent heat, ice is able to absorb a large quantity of heat from the fish as it melts. Thus, food can be kept at a low temperature for an extended period of time. • Water has a large specific latent heat of vaporization. This property enables steam to be used for cooking by the method of steaming. When steam condenses on the food, the latent heat is released directly onto the food enables the food to be cooked at a faster rate. • Our bodies feel cool after sweating. This is because latent heat of vaporization is absorbed from the body when sweat evaporates. As a result, the body is cooled by the removal of