`DeltaH_(comb)^(@)` of carbon is `-x kJ mol^(-1)`. The standard formation of enthalpy of `CO_(2)(g)` will be

The standard heat of combustion of graphite carbon is -393.5 kJ mol^(-1) . The standard enthalpy of CO_(2) is

Calculate the standard enthalpy of formation of propane (C_(3)H_(8)) if its enthalpy of combustion is -2220.2 kJ "mol"^(-1) .The enthalpies of formation of CO_(2)(g) and H_(2)O(l) are -393.5 and -285.8 kJ "mol"^(-1) respectively.

The enthalpy of combustion of carbon to CO_(2)(g) is -393.5 kJ mol^(-1) . The heat released upon the formation of 35.2 g of CO_(2) from carbon and dioxygen is :

The standard enthalpies of formation of H_(2)O(l) and CO_(2)(g) are respectively -286" kJ mol"^(-1) and -394" kJ mol"^(-1) . If the standard heat of combustion of CH_(4)(g)" is "-891" kJ mol"^(-1) , then the standard enthalpy of formation of CH_(4)(g) is

If the standard formation- enthalpy of CS_(2) , CO_(2) and SO_(2) are 117 kJ * mol^(-1) , -393 kJ * mol^(-1) and -297 kJ * mol^(-1) respectively , calculate the standard reaction enthalpy of - CS_(2) + 3O_(2) to CO_(2) + 2 SO_(2)

If enthalpy of combustion of carbon to CO_(2) (g) is -394.0kJ mol^(-1) , the enthalpy change for the formation of 17.6 g of CO_(2) from carbon and dioxygen at the same temperature in kJ is

If the enthalpies of formation of C_3H_8(g), CO_2(g) and H_2O(l) at standard conditions are -104 kJ mol^-1, -394 kJ mol^-1 and -286 kJ mol^-1 respectively then the standard Enthalpy of combustion of 66 g of C_3H_8(g) will be

Enthalpy of combustion of benzene is -3267 kJ mol^(-1) . Calculate enthalpy of formation of benzene, given enthalpy of formation of CO_(2) and water are - 393.5 kJ mol^(-1) and -285.83 kJ mol^(-1) .