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August 27, 2015

Homework Help: Chemistry-Thermochemistry (grade 12)

Posted by Rose Bud on Wednesday, February 15, 2012 at 11:12pm.

Thermochemistry

determine the final temperature if 45.67 kJ of heat energy is removed from 18.5 g of H2O (g) at 122 degrees Celsius

useful information
sp. heat H2O (s) = 2.03 J/g(degree C)
sp heat H2O (l) = 4.18 J/g(degree C)
Sp heat H2O (g) = 2.01 J/g(degree C)

enthalpy H Fus = 334 J/g
enthalpy H vap = 2260 J/g

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