Question

Enter your answer in the provided box. The enthalpy of combustion of benzoic acid (CH COOH) is commonly used as the standard for calibrating constant-volume bomb calorimeters; its value has been accurately determined to be -3226.7 kJ/mol. When 3.0653 g of benzoic acid are burned in a calorimeter, the temperature rises from 21.84°C to 24.67°C. What is the heat capacity of the bomb? (Assume that the quantity of water surrounding the bomb is exactly 2250 g.) kJ/°C

Answer 1

I mole benzoic acid gives -3226.7 KS - 20293: catorine for Energy in a E = C&AT c. heat capacity Isale benzoic and weigh = 122.1 glans/ 122.1 g bessoic acid gives off 3226.7.k]. Then 3.06539 benzoic and gives off 3226.7 kJ x 3.065,3g 122-19 - 81.006 kJ enersy AT 24.67 -21.84 - 2.83 Then c = E 34.006 AT - 2.89 = 28.62 KS, . Cheat capacity