Use the molar bond enthalpy data in the table to estimate the value of Delta H degree rxn for the equation
Concepts and reason
This problem can be solved by using the general equation for the heat of a reaction.
The heat of a reaction or change in enthalpy of a reaction can be estimated from bond energy. Heat energy is estimated after balancing the given equation.
Bond energy is defined as the amount of energy required to break the bond of 1 mole of a gaseous compound to produce its constituents.
The change in enthalpy of a reaction is the difference of summation of bond energies of bond broken and the summation of the bond energies of the bonds formed. It is written as follow.
The reaction is as follows:
The enthalpy of reactants bonds broken and products bond formed is calculated by substituting the values from the mention table in the question.
Pay attention while calculating the bond energies of the bonds broken and bonds formed. Before calculation the equation should be balanced and the number of bonds should be taken into account while calculating.
The heat energy of the reaction is calculated from the given bond energies by substituting the values in the general expression.