In a bomb calorimeter (constant volume), 3.5 g of a gas (Molar Mass-28.0g/mol) react with an excess of oxygen at 298.0 K. After combustion the temperature of the calorimeter increases from 298.0 K to...

Extracted text: In a bomb calorimeter (constant volume), 3.5 g of a gas (Molar Mass-28.0g/mol) react with an excess of oxygen at 298.0 K. After combustion the temperature of the calorimeter increases from 298.0 K to 298.45 K. If the heat capacity of the calorimeter is C=2.5 kJK^-1, calculate the AH of combustion in kimol-1. Assume the total number of moles of the gas doesn't change during combustion.