3.1.4.4 Bond Enthalpies Flashcards
1
Q
What is bond enthalpy?
A
The energy needed to break one mole of covalent bonds between atoms for a specific molecule into gaseous single atoms
2
Q
What is mean bond energy?
A
The energy needed to break one mole of covalent bonds into single gaseous atoms averaged over a range of different molecules(environments?)
3
Q
How to determine the enthalpy change of a reaction?
A
deltaH = sum of bonds broken - sum of bonds formed
4
Q
What is bond formation?
A
Exothermic
5
Q
What is bond breaking?
A
Endothermic