QJEEM22Che37d: JEE Main 2022 Chemistry - Class 11 JEEM22Che37d Solution: A gas (Molar mass = 280   g   mol − 1 ) was burnt in…

A gas (Molar mass = 280 $$\mathrm{g}{\mathrm{mol}}^{-1}$$) was burnt in excess $${\mathrm{O}}_2$$ in a constant volume calorimeter and during combustion the temperature of calorimeter increased from $$298.0\mathrm{K}$$ to $$298.45$$ $$\mathrm{K}$$. If the heat capacity of calorimeter is $$2.5\mathrm{kJ}{\mathrm{K}}^{-1}$$ and enthalpy of combustion of gas is $$9\mathrm{kJ}{\mathrm{mol}}^{-1}$$ then amount of gas burnt is _____________ g. (Nearest Integer)