Chemistry The pressure during the molar heat of fusion is kept________________? Options:A. 0 atmosphereB. one atmosphereC. 2 atmosphereD. 10 atmosphereView AnswerB. one atmosphere 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________________?