Chapter 12 - Energy & Chemical Change Flashcards
0
Q
Enthalpy
A
A measure if total energy of a chemical system for a given pressure.
Symbol- H
1
Q
Bond energy
A
A measure of bond strength in a chemical bond. It is the amount of energy (in kJ•mol-1) that is needed to break the chemical bond between atoms.
2
Q
Exothermic reaction
A
One that releases energy in the form of heat or light.
3
Q
Endothermic reaction
A
One that absorbs energy in the form of heat and light.
4
Q
Activation energy
A
The minimum amount of energy that is needed to start a chemical reaction.
