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 water goes from a liquid state to a vapour state et receives energy in the form of âlatent heat of vaporizationâ. As long as thereâs some liquid water left, the steamâs temperature is the same as the liquid waterâs. Steam is then called saturated steam. When all the water is vaporized, any subsequent addition of heat raises the steamâs temperature. Steam heated beyond the saturated steam level is called superheated steam.