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April 27, 2015

Homework Help: college chemistry

Posted by pamela on Tuesday, May 25, 2010 at 3:21pm.

How much heat is needed to convert 2.00 kg of liquid ammonia at -40.0 oC to its vapor at -11.0 oC? The specific heat of liquid ammonia, NH3 (l), is 4.70 J/g-K and that of the vapor NH3 (g), is 2.20 J/g-K. The enthalpy of vaporization of ammonia is 23.3 kJ/mol and its boiling point is -33.3 oC. Please help!!

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