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View Full Version : Calculate Delta E and H at 25.00 degrees C?


mamz123
Nov 14, 2012, 05:59 PM
Suppose that 1.50 x 10^-2 mol of aluminum is combusted in the presence of excess oxygen in a bomb calorimeter.

4Al + 3O2--> 2Al2O3

The calorimeter is loaded with 745 mL of water and the heat capacity of the empty calorimeter is 355 J/degrees C. Calculate the delta H and delta E at 25.00 degrees C for the combustion of aluminium (in kJ/mol rxn) assuming that the initial temperature of the water is 25.00 degrees C and the final temperature of the water is 28.62 degrees C.