15. How much heat energy (in kJ) is evolved by a reaction in a bomb calorimeter in which the temperature of the bomb and water increased from 19.5 to 22.83 ºC? The bomb has a heat capacity of 650 J/C; the calorimeter contains 320 g of water.

Question

15.	How much heat energy (in kJ) is evolved by a reaction in a bomb calorimeter in which the temperature of the bomb and water increased from 19.5 to     22.83 ºC?  The bomb has a heat capacity of 650 J/C; the calorimeter contains 320 g of water.

DrBob222 · Answer

q = [mass H2O x specific heat H2O x (Tfinal-Tinitial)] + [Ccal*(Tfinal-Tintiial)] Substitute and solve for q, then convert to kJ.