Posted by **Marcus ** on Monday, March 11, 2013 at 2:34am.

I'm working on a problem dealing with calculating the heat of vaporization for vapor pressures problem.

By substituting the problems values into the Clausuis-Clapeyron equation I get:

.642= (2.28x10-5) x Delta H vap (J/mol)

However, from this point I don't know how to calculate a correct Delta H value?

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