Enthalpy Changes delta h Nuclear Power Delta Vap H Delta 8 THC Disposable Vape 10.10: Enthalpy of Fusion and Enthalpy of Vaporization Chemistry LibreTexts vp vs temp.svg WebElements Periodic Table Periodicity Enthalpy of vaporization Periodic table gallery The internal energy change (in J) when 90 g of water undergoes complete evaporation at `100^(@)C ` is ______ . (Given : `Delta H_("vap")` for water at 373 K = 41 kJ mol , `R = 8.314 JK^( 1) mol^( 1)`) Delta H Vap Standard Enthalpy Of Atomization, Solution And Phase Transition