Chemical Thermodynamics Part 3

A sample of n-octane ( 1.14 g ) was completely burnt in excess of oxygen in a bomb calorimeter, whose heat capacity is 5‌kJ‌K−1. As a result of combustion reaction, the temperature of the calorimeter is increased by 5 K . The magnitude of the heat of combustion of octane at constant volume is ____ kJ‌mol−1 (nearest integer).