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Chemistry 2 homework problem

How much heat is released at constant pressure if a 16.0 L tank containing 35.0 atm of hydrogen sulfide gas condenses at its boiling point of -60.0 degrees Celsius? The enthalpy of vaporization of hydrogen sulfide is 18.7 kJ/Mol at -60.0 degrees celcius. (R=0.0821 L•atm/K•Mol) 

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