A 80.0 sample of water is heated to its boiling point. How much heat (in ) is required to vaporize it? (Assu

Question

A 80.0 mL sample of water is heated to its boiling point. How much heat (in KJ) is required to vaporize it? (Assume a density of 1.00 g/ml .)

Answer 1

the standard enthalpy of vaporization for water is 40.68 kJ/mol

80.00 grams @ 40.68kJ/18grams = 180.8 Kj

your answer is :  181kJ