How to Calculate Bond Energy
Define the equation for calculating bond energy.. Draw the chemical equation showing all of the bonds between molecules.. Know the rules for counting broken and formed bonds.
Steps
Define the equation for calculating bond energy.
Define the equation for calculating bond energy.
Draw the chemical equation showing all of the bonds between molecules.
Draw the chemical equation showing all of the bonds between molecules.
Know the rules for counting broken and formed bonds.
Know the rules for counting broken and formed bonds.
Identify the bonds broken on the left side of the equation.
Identify the bonds broken on the left side of the equation.
Count the bonds formed on the right side of the equation.
Count the bonds formed on the right side of the equation.
Look up the bond energies of the bonds in question.
Look up the bond energies of the bonds in question.
Multiply the bond energies by the number of bonds broken.
Multiply the bond energies by the number of bonds broken.
Add up all of the bond energies of the broken bonds.
Add up all of the bond energies of the broken bonds.
Multiply the bond energies by the number of bonds formed.
Multiply the bond energies by the number of bonds formed.
Add up all of the formed bond energies.
Add up all of the formed bond energies.
Subtract the formed bonds from the broken bonds.
Subtract the formed bonds from the broken bonds.
Determine whether the entire reaction was endothermic or exothermic.
Determine whether the entire reaction was endothermic or exothermic.
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