Reaction Rate And Equilibrium Flashcards
Reaction Rate
Change in concentration of reactants and products per unit time
Heat of reaction
Energy absorbed or released in a chemical reaction
Exothermic Reaction
Reaction that releases energy
Endothermic Reaction
Reaction that absorbs energy
Activation Energy
Minimum energy needed for a reaction to take place
Activated Complex
Unstable transition state from reactants to products in a chemical reaction
Collision Theory
Model that explains reaction rate as the result of particles colliding with a certain minimum energy
Positive Catalyst
Substance that increases the rate of a chemical reaction without itself undergoing a permanent change
Open vs closed system
Opens system continuously interacts with it’s environment while a closed system is isolated from it’s surroundings
Reversible Reactions
Products can be converted back to reactants
Chemical Equilibrium
Dynamic equilibrium when the rate of the forward reaction equals the rate of the reverse reaction
Let Chatelier’s Principle
When the equilibrium in a closed system is disturbed, the system I’ll reinstate a new equilibrium by favouring the reaction that will oppose the disturbance
