Calculate the bond energy of N-N bond if heat of atomisation of `NH_3`, and `N_2H_4`, are 'x' and 'y' kcal `mol^-1` respectively

Calculate their bond order N_(2)^-

The heat of combustion of acetylene is 312 kcal. If the heat of formation of CO_2 is 94.38 kcal and that of water is 63.38 kcal, calculate C -=C bond energy assuming that the bond energy of C-H is 93.6 kcal. Heat of atomisation of carbon and hydrogen are 150 and 51.5 kcal respectively.

Calculate the bond energy of C - H bond, given that the heat of formation of CH_4 , heat of sublimation of carbon and heat of dissociation of H_2 are -74.8 + 719.6 and 435 kJ mol^(-1) respectively.

Heat of atomisation of NH_(3) and N_(2)H_(4) are "x kcal mol"^(-1) and "y kcal mol"^(-1) respectively. Calculate average bond energy of N-N bond.

The standard heat of formation of NO_(2)(g) and N_(2)O_(4)(g) are 8.0 and 4.0 kcal mol ^(-1) respectively. The heat of dimerisation of NO_(2) in kcal is

Calculate the bond energy of H-Cl bond, given that the bond energies of H–H, CI—Cl bonds are 433 kJ mol^(-1) and 242 kJ mol^(-1) respectivly. The DeltaH_f for HCl is -91 kJ" " mol^(-1) .

The standard heats of formation of NO_(2)(g) and N_(2)O_(4)(g) are 8.0 and 2.0 Kcal mol^(-1) respectively the heat of dimerization of NO_(2) in Kcal is

The heat of atomisation of PH_(3)(g) and P_(2)H_(4)(g) are 954 kJ mol^(-1) and 1485 kJ mol^(-1) respectively. The P-P bond energy in kJ mol^(-1) is

Bond dissociation enthalpies of H_(2(g)) and N_(2(g)) are "426.0 kJ mol"^(-1) and "941.8 kJ mol"^(-1) , respectively, and enthalpy of formation of NH_(3(g))" is "-"46 kJ mol"^(-1) . What are the enthalpy of atomisation of NH_(3(g)) and the average bond enthalpy of N-H bond respectively ( in kJ "mol"^(-1) )?

The bond dissociation energies of gaseous H_(2),C1_(2) , and HC1 are 100, 50 , and 100 kcal mol^(-1) , respectively. Calculate the enthalpy of formation of HC1(g) .