Large-value data types cannot be converted to the sql_variant data type. For information about how to convert Microsoft .NET Framework common language runtime (CLR) user-defined types, see Performing Operations on User-defined Types.
Heat of Vaporization-the amount of heat required to convert unit mass of a liquid into the vapor without a change in temperature. For water at its normal boiling point of 100 C, the heat of vaporization is 2260 J g-1. 2260 J of heat must be absorbed by the water. Conversely, when 1 g of steam at 100 C condenses to give 1 g of water at 100 C, 2260 J of heat will be released to the surroundings.
The heat of vaporization is the amount of energy required to turn a liquid into a gas at its boiling point. Just like with melting, it takes energy to change a liquid into a gas, but energy is lost when a gas is changed into a liquid.n order to change a solid to a liquid, there is a certain amount of energy required. This is called the heat of fusion. Remember, fusion means melting, so you can see where it gets its name. Anyway, the heat of fusion is the amount of energy required to change a substance from a solid to a liquid at its melting point.