Bond Energy Flashcards
Describe what happens in relation to bonds when a chemical reaction occurs.
Bonds are broken and new bonds are formed
What is required to break a bond?
Energy
What is released when a bond is formed?
Energy
During a chemical reaction what is energy needed for?
To break bonds
During a chemical reaction when is energy released?
Energy is released when a bond is formed
What is the energy involved in breaking bonds called?
It is called bond energy
Define bond energy.
Bond energy is the average energy required to break one mole of a particular covalent bond and to separate the neutral atoms completely from each other
How are bond energy values measured?
They are measured form studying spectra of molecules and from values of heats of reaction
Who used bond energy values to draw up a table of electronegativity values?
Linus Pauling
What did Linus Pauling use bond energy values for?
He used them to draw up a table of electronegativity values
Why are bond energy values often averages?
Because it is found that the bond energy value for a particular bond can vary
