Delta_{vap}H^ for water is +40.49 kJ moi^ 1 at 1 bar and 100C . Change in internal energy for this vaporization under same condition is Sarthaks eConnect Largest Online Education Community Solved: H v a p for water is 40.7 KJ mol 1 . The entropy of vapo [Chemistry] Delta S` for vapouization of 900g water (in KJ K ) is `Delta H_(Vap)=40KJ(mol)^ 1 ` phase diagram water.svg THC H Vape Cartridges Death Star For Sale 1000mg Buy THCH Vapes 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