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Unformatted text preview: 3. Last 15 minutes of class a. Quiz to be taken in-class (only approved calculators to be used; no use of book or notes allowed) 1. Recall that enthalpy is heat at constant pressure as defined in earlier chapters of your book. With that in mind, and using the figure below, calculate the enthalpy change upon converting 20.00 grams of ice at -25.00 degrees C to steam at 100.00 degrees C. The pressure outside is 1.000 atm. Specific heat (SH) ice = 2.09 J/gK SH liquid = 4.18 J/gK SH gas = 1.84 J/gK H fus = 6.01 kJ/mol H vaporization = 40.67 kJ/mol H(total)= 61.28 kJ...
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- Winter '07