Topic 5 Flashcards
1
Q
What is an exothermic reaction
A
One which transfers energy to the surroundings, usually by heating
2
Q
What is an endothermic reaction
A
One which takes in energy from the surroundings.
3
Q
During chemical reaction old bonds are _______ and new bonds are ______
A
Broken
Formed
4
Q
Is bond breaking a endo or exo process
Why
A
Endothermic process
Energy must be supplied to break existing bonds
5
Q
Is forming new bonds a exo or endo process
Why
A
Exothermic process
Energy is released when new bonds are formed
