Chemistry - Thermochemistry Question with Solution | TestHub

The enthalpy of combustion of a given compound is defined as the change in enthalpy when 1 mole of this compound combines with the required amount of O₂ to give products in their stable forms. The enthalpy of combustion is usually measured by placing a known mass of the compound in a closed steel container (known as a bomb calorimeter).

$\Delta H_{comb}^0\left(C{H}_{4,}g\right)=-900kJ$/mole

$\Delta H_{comb}^0\left(C,graphite\right)=-400kJ$/mole

$\Delta H_{comb}^0\left(H_2,g\right)=-300kJ$/mole

$\Delta H_{atomization}^0\left(C,graphite\right)=700kJ$/mole

and $\Delta H_{\mathrm{f}}^0(\mathrm{H},\mathrm{g})$$=220kJ/mol$