Bond Enthalpies

Question 1

What is a bond enthalpy?

Answer 1

Enthalpy change that takes place when breaking one mole of a given bond in the molecules of a gaseous species.

Question 2

What is average (mean) bond enthalpy?

Answer 2

Average enthalpy change that takes place when breaking one mole of a given type of bond in the molecules of a gaseous species.

Question 3

What is the equation for enthalpy change?

Answer 3

(Sum of bond enthalpies of bonds broken) - (sum of bond enthalpies of bonds made)