9.3 Bond Enthalpies Flashcards
1
Q
What is average bond enthalpy?
A
The energy requried to break one mole of a specified type of bond in a gaseous molecule
2
Q
What is the energy required to make a bond equal to?
A
The energy required to break the bond
3
Q
Is breaking bonds endo or exothermic?
A
Exothermic
4
Q
Is making bonds endo or exothermic?
A
Endothermic
5
Q
How do you calculate the enthalpy change of a reaction?
A
Bond enthalpies in reactants - Bond enthalpies in products
