Section 12 - Bond Energy Flashcards
1
Q
If the bond energy of C-H is 413, what does this mean?
A
It takes 413kJ of energy to break 1 mole of C-H bonds
2
Q
When a reaction takes place, what is the equation for the change in energy?
A
Sum of energy required to break old bonds - sum of energy released by new bonds formed
3
Q
When calculating energy change, does a negative sign indicate an endothermic or exothermic reaction?
A
Exothermic reaction
