One of us seems to have our numbers wrong. 1,725 kJ/kg is 1,725 J/g, which is less than the enthalpy of vapourisation I'd quoted. (Though yes, I understand yo

One of us seems to have our numbers wrong. 1,725 kJ/kg is 1,725 J/g, which is less than the enthalpy of vapourisation I'd quoted. (Though yes, I understand your point: pressurisation raises boiling point, and so far as I'm aware, vapourisation energy.)