Rate Of Reaction Flashcards
1
Q
Activation energy
A
The minimum energy required to start a chemical reaction OR The energy
required to form the activated complex.
2
Q
Activation complex
A
A high energy, unstable, temporary transition state between the reactants and
the products.
3
Q
Catalyst
A
A substance that increases the rate of a chemical reaction but remains unchanged at the
end of the reaction
4
Q
The reaction rate of a chemical reaction
A
– The change in concentration per unit time of either a reactant or product.
5
Q
Heat of reaction
A
The net change in chemical potential energy of the system.
6
Q
Exothermic reaction
A
Reactions which transform chemical potential energy into thermal energy.
7
Q
Endothermic reaction
A
Reactions which transform thermal energy into chemical potential energy
