Bond Energies Flashcards
1
Q
What 2 things happen to the bond during a chemical reaction
A
Energy must be supplied to break bonds in the reactants - endothermic
Energy is released when bonds in the products are formed - exothermic
2
Q
What is the energy formed in exothermic reactions
A
Energy released when forming bonds is greater than the energy used to break them
3
Q
What is the energy used in endothermic reactions
A
The energy used to break bonds is greater than the energy released by forming them
4
Q
How do you calculate he overall energy change
A
Calculate energy on both sides of the bond and then take it away to find the energy change
