JEE Main 2023 Chemistry question

0.3 g of ethane undergoes combustion at 27°C in a bomb calorimeter. The temperature of calorimeter system (including the water) is found to rise by 0.5°C. The heat evolved during combustion of ethane at constant pressure is kJ . (Nearest integer) [Given : The heat capacity of the calorimeter system is 20 kJ , R = 8.3 J. Assume ideal gas behaviour. Atomic mass of C and H are 12 and 1 g respectively]