Chemistry Molar heat of vaporization of water is_________________? Options:A. 40.7 KJ/moleB. 40.7 J/moleC. 40.7 cal/moleD. 40.7 Kcal/moleView AnswerA. 40.7 KJ/mole Continue Reading Previous: Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?Next: Estimation of amounts of different components in a sample is________________?