A gas (Molar mass = 280 g mol ) was burnt in excess O in a constant volume calorimeter and during co — Thermodynamics and Thermochemistry Chemistry Question

Question

A gas (Molar mass = 280 g mol ) was burnt in excess O in a constant volume calorimeter and during combustion the temperature of calorimeter increased from 298.0 K to 298.45 K. If the heat capacity of calorimeter is 2.5 kJ K and enthalpy of combustion of gas is 9 kJ mol then amount of gas burnt is_______ g. (Nearest Integer) –1 2 –1 –1