Energy And Chemical Change Flashcards
1
Q
Enthalpy change (heat of reaction)
A
The energy absorbed or released per mole in a chemical reaction
2
Q
Enthalpy
A
Is the total amount of chemical potential energy in a chemical system
3
Q
Activation energy
A
The minimum energy needed for a reaction to take place
4
Q
Activated complex
A
The unstable transition state from reactants to products
5
Q
Exothermic reaction
A
Reactions that release energy
6
Q
Endothermic reaction
A
Reactions that absorb energy
7
Q
Catalyst
A
A substance that speeds up the reaction, by decreasing the activation energy
8
Q
Bond energy
A
Is the energy needed to break the existing bond in one mol of a compound in the gas pha
