Consider the following data
Heat of combustion of `H_2`(g)=-241.8kJ `mol^-1`
Heat of combustion of `C(s)`=-393.5 kJ `mol^-1`
Heat of combustion of `C_2H_5OH(I)` is (-) _____ kJ `mol^-1`(Nearest integer)

The heat of combustion of methane is -880 KJ mol^(-1) . The quantity of heat liberated in the combustion of 3.2 g methane is

The enthalpy change for the reaction C_(3)H_(8)(g)+H_(2)(g) rarr C_(2)H_(6)(g)+CH_(4)(g) at 25^(@)C is -55.7 kJ/mol. Calculate the enthalpy of combustion of C_(2)H_(6)(g) . The enthalpy of combustion of H_(2) , & CH_(4) are -285.8 & -890.0 kJ/mol respectively. enthalpy of combustion of propane is -2220" kJ mol"^(-1) .

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

If the standard molar enthalpy change for combustion of graphite powder is -2.48 xx 10^(2)kJ mol^(-1) , the amount of heat generated on combustion of 1g of graphite powder is ______kJ. (Nearest integer).

The heat of combustion of CH_(4) is -400 KJ mol^(-1) . Calculate the heat released when 40g of H_(2)O is formed upon combustion :-

Calculate the resonance enegry of toulene (use Kekule structure form the following data C_(7)H_(8)(l) +9O_(2)(g) rarr 7CO_(2)(g) +4H_(2)O(l)+ DeltaH, DeltaH^(Theta) =- 3910 kJ mol^(-1) C_(7)H_(8)(l) rarr C_(7)H_(8)(g), DeltaH^(Theta) = 38.1 kJ mol^(-1) Delta_(f)H^(Theta) (water) =- 285.8 kJ mol^(-1) Delta_(f)H^(Theta) [CO_(2)(g)] =- 393.5 kJ mol^(-1) Heat of atomisaiton of H_(2)(g) = 436.0 kJ mol^(-1) Heat of sulimation of C(g) = 715.0 kJ mol^(-1) Bond energies of C-H, C-C , and C=C are 413.0, 345.6 , and 610.0 kJ mol^(-1) .

If the heat of combustion of pentane is 3507 kJ mol^(-1) then its calorific value will be ?

DeltaU^(@) of combustion of CH_(4(g)) at certain temperature is -"393 kJ mol"^(-1) . The value of DeltaH^(@) is

The enthalpies of formation of CO and CO_(2) are -110.5 KJ mol^(-1) and -393.5 KJ mol^(-1) respectively. The enthalpy of combustion of carbon monoxide is

If the enthalpy of combustion of C (graphite) is -393.3kJ mol^(-1) , then for producing 39.3kJ of heat the amount of carbon required is