Rates Of A Chemical Reaction Flashcards
Activation energy
The minimum energy required to start a chemical reaction OR the energy required to form the activated complex
Activated complex
A high energy, unstable, temporary tans Irion state between the reactants and the products
A catalyst
A substance that increases the rate of a chemical reaction but remains unchanged at the end of the reaction
The reaction rate of a chemical reaction
The change in concentration per unit time of either a reactant or product
Heat of the reaction (ΔH)
The net change in chemical potential energy of the system. ΔH > 0 for endothermic reactions and ΔH< 0 for exothermic reactions
Exothermic reactions
Reactions which transform chemical potential energy into thermal energy
Endothermic reactions
Reactions which transform thermal energy into chemical potential energy
