How the Bond Energy Calculator Works

This calculator estimates the energy change for chemical reactions based on bond energies, a crucial concept in thermochemistry and chemical kinetics.

Steps to Calculate Bond Energy

Select the type of bonds involved in the reaction or input the bond energies manually.
Input the number of bonds broken in the reactants.
Input the number of bonds formed in the products.
Click "Calculate Energy" to determine the net energy change (ΔH).
The calculator will display detailed steps of the calculations.

Common Bonds and Their Bond Energy Values

Bond Type	Bond Energy (kJ/mol)
H-H	436
C-H	412
O-H	463
C=O	799
O=O	498
C-C	348
C=C	612

Bond Energy Calculation Equation

The energy change (ΔH) for a chemical reaction is calculated as:

ΔH = Σ(Bond Energies of Bonds Broken) - Σ(Bond Energies of Bonds Formed)

Where:

ΔH = net energy change (kJ/mol)
Bonds Broken = total energy required to break bonds in reactants
Bonds Formed = total energy released from bonds formed in products

Note: This calculator assumes all bond energies are averaged values and applies to gas-phase reactions.