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What is the bond dissociation energy of gaseous H2 and HCl?

The bond dissociation energy of gaseous H2 , Cl2 and HCl are 104 , 58 and 103 kcal / mole respectively . Calculate the enthalpy of formation of HCl gas.

What is the bond dissociation enthalpy of diatomic molecules?

A diatomic molecule is one that only contains two atoms. They could be the same (for example, Cl 2) or different (for example, HCl). The bond dissociation enthalpy is the energy needed to break one mole of the bond to give separated atoms - everything being in the gas state.

How do you calculate the bond dissociation energy?

The BDE for a molecule A-B is calculated as the difference in the enthalpies of formation of the products and reactants for homolysis Officially, the IUPAC definition of bond dissociation energy refers to the energy change that occurs at 0 K, and the symbol is D o.

What is the enthalpy of formation of two moles of HCl?

Enthalpy of formation of HCl is: >> Bond dissociation enthalpy ... and HCl are 434, 242 and 431 kJ mol −1 respectively. The reaction between hydrogen and chlorine molecules to form hydrogen chloride. This reaction can be broken down into these simple steps: This is the enthalpy of formation of two moles of HCl.


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