`F_(2)(g) +2HCI(g) rarr 2HF(g) +CI_(2)(g), DeltaH^(Theta) =- 352.18 kJ`
Given heat of formation of `HF, Delta_(f)H^(Theta)underset((HF))" =- 268.3 kJ` The heat of formation of `HCI` will be

F_(2)(g) +2HCI(g) rarr 2HF(g) +CI_(2)(g), DeltaH^(Theta) =- 352.18 kJ Given heat of formation of HF, Delta_(f)H^(Theta)underset((HF))" =- 268.3 kJ The heat of formation of HCl will be

H_(2) (g) +I_(2) (g) rarr 2HI (g), DeltaH=51.9 kJ . According to this, heat of formation of HI is

The heat of formation of H_(2)O_((l)) is -286.2 kJ. The heat of formation of H_(2)O_((g)) is likely to be

For the reaction : F_(2)(g) + 2HCl(g) hArr 2HF(g) + Cl_(2)(g) Delta H^(theta) at 25^(@)C is =-84.4 kcalmol^(-1) Delta_(f) H^(theta)(HF) = -64.2kcalmol^(-1) Delta_(f) H^(theta) for HCl(g) per gram is :

Calculate the resonance energy of toluene (use Kekule structure from 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 atomisation of H_(2)(g) = 436.0 kJ mol^(-1) Heat of sublimation 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) .

?H for the reaction, F_(2)+2HClrarr2HF+Cl_(2) is -352.8 kJ and standard heat of formation of HF is -268.3 kJ mol^(-1) . Calculate standard heat of formation of HCl.

The reaction between gaseous hydrogen and chlorine is H_(2)(g) + CI_(2)(g) to 2HCI(g) Delta_(r)H^(@) = -184.0 kJ (i) What is the enthalpy of formation of HCI? How much heat will be liberated at 298 K and 1 atm for the formation of 365 g of HCI?

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) .