BOND ENTHALPY Flashcards
1
Q
What is bond enthalpy?
A
The enthalpy change when one mole of a bond in the gaseous state is broken.
2
Q
What is mean bond enthalpy?
A
The enthalpy change when one mole of a bond, averaged out over many molecules, is broken.
3
Q
What is the shorthand representation of mean bond enthalpy?
A
E.
4
Q
Why do we use mean bond enthalpy?
A
Because the bond enthalpy for some bonds such as C-H varies with the environment.
5
Q
What is the equation for enthalpy change of a reaction?
A
Bonds broken - bonds made
