Chemical Thermodynamics Part 2

2.4g coal is burnt in a bomb calorimeter in excess of oxygen at 298K and 1‌atm pressure. The temperature of the calorimeter rises from 298K to 300K. The enthalpy change during the combustion of coal is −x‌kJ‌mol−1. The value of x is ________. (Nearest Integer)
(Given : Heat capacity of bomb calorimeter 20.0‌kJ‌K−1. Assume coal to be pure carbon)