What is standard enthalpy of formation

The bond dissociation energies for Cl_(2) , I_(2) and IC l are 242.3 , 151.0 and 211.3 kJ//"mole" respectively. The enthalpy of sublimation of iodine is 62.8 kJ //"mole" . What is the standard enthalpy of formation of ICI(g) nearly equal to

Given N_(2)(g)+3H_(2)(g)rarr2NH_(3)(g),Delta_(r)H^(Ө)= -92.4 kJ mol^(-1) What is the standard enthalpy of formation of NH_(3) gas?

Given N_(2)(g)+3H_(2)(g)rarr2NH_(3)(g),Delta_(r)H^(Ө)= -92.4 kJ mol^(-1) What is the standard enthalpy of formation of NH_(3) gas?

From the given information, what is the standard enthalpy of formation for Al_(2)O_(3)(s) ? 2Al_(2)O_(3)(s)to4Al(s)+3O_(2)(g),DeltaH_(rxn)^(@)=3352kJ

The standard enthalpy of decomposition of the yellow complex H_(3)NSO_(2) into NH_(3) and SO_(2) is +40 kJ mol^(-1) . Calculate the standard enthalpy of formation of H_(3)NSO_(3).DeltaH_(f)^(0)(NH_(3))= -46.17 kJ mol^(-1), DeltaH_(f)^(0)(SO)_(2)= -296.83

Choose the reaction, for which the standard enthalpy of reaction is equal to the standard enthalpy of formation:

Enthalpy of which of the following reactions does not represent the standard enthalpy of formation?

Which among the following represents standard enthalpy of formation?

The enthalpy of reaction for the reaction 2H_(2) (g) + O_(2) (g) rarr 2H_(2) O (l) " is " Delta_(r) H^(Θ) = - 572 kJ mol^(-1) What will be standard enthalpy of formation of H_(2) O (l) ?

Calculate the standard internal energy of formation of liquid methyl acetate (CH_(3)COOCH_(3)) from its standard enthalpy of foramtion, which is -44.291 kJ "mole"^(-1) at 25^(@)C