Simple, Quick, and Accurate Determination of the Heat of Vaporization of Water Chemical Education Xchange For the vaporisation of water : `H_(2)O (I) hArr H_(2)O(g)` [1 atm. Pressure] Given : `Delta S = 120 JK^( 1)` and `Delta H =+45.0 kJ`. Evaluate the temperature at which liquid water Entropy of Vaporization an overview ScienceDirect Topics Standard enthalpy of vaporisation`DeltaV_(vap).H^(Theta)` for water at `100^(@)C`is`40.66kJmol^( 1)`.Teh internal energy of Vaporization of water at` 100^(@)C("in kJ mol"^( 1))`is Delta Faucet Instant Hot Water Dispenser Faucet Gold, Instant Hot Water Tap, Hot Water Faucet, Champagne Bronze 1930LF H CZ (Tank and Filter Not Included) Amazon.com 3 Ways to Calculate Vapor Pressure wikiHow