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 How to calculate Delta S? Problems, Formulas, Units 24 19. (a) Use Trouton's rule, Delta Hvap^circ approx (88 Enthalpy Changes delta h Nuclear Power phase changes.svg
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