Unit 3: Bond Enthalpy Flashcards
1
Q
Making bonds release or require energy?
A
release (exo)
2
Q
Breaking bonds release or require energy?
A
require (endo)
3
Q
Define mean bond enthalpy
A
the energy required to break 1 mole of bonds in a diatomic reaction
4
Q
Define mean molar enthalpy
A
the average energy required to break 1 mole of bonds, for a bond that occurs in a number of compounds
5
Q
What can bond enthalpies be used for?
A
To estimate the enthalpy change for a reaction occurring in the gas phase
6
Q
How do you calculate bond enthalpy?
A
energy required to break bonds + (-energy released to make bonds)
