At standard conditions, if the change in the enthalpy for the following reaction is .

Given that bond energy of and is and , respectively, what is the bond energy (in ) of ?

Question

At standard conditions, if the change in the enthalpy for the following reaction is .

Given that bond energy of  and  is  and , respectively, what is the bond energy (in ) of ?

Canvas Classes · Accepted Answer

🧠 Energy Accounting
Think of a chemical reaction as a construction project. You spend energy to "break" the old bonds (buying materials) and you get energy back when the new bonds "form" (selling the finished product). The Enthalpy of reaction is the net profit or loss.

🗺️ The Bond Energy Calculation
For any reaction:

Note: Unlike , here we do (Reactants - Products) because bond breaking is endothermic (+ve) and bond formation is exothermic (-ve).

1. The Reaction: 
2. Equation:
   
3. Subst

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