Rates & Extent of Chemical Changes

Cards (16)

How can you increase the rate of reaction?
Increase temperature
Increase solution concentration
Increase pressure of gases
Increase surface area
What does a catalyst do?
Speeds up a chemical reaction
What is a reversible reaction?
Where the products can react and produce the original reactants
What is an endothermic reaction?
A reaction which takes in energy
What is an exothermic reaction?
A reaction in which releases energy
What is equilibrium?
The forward and reverse reactions happen at the same time
What is dynamic equilibrium?
The amount of reactant and product are consistent, but not equal
What is Le Châteliers principle?
Where the conditions favour the forward or reverse reaction.
How does increasing temperature effect the reaction?
favours the endothermic reaction
How does decreasing the temperature effect the reaction?
Favours the exothermic reaction
How does increasing pressure effect the reaction?
favours reaction which results in fewer molecules
How does decreasing the pressure effect the reaction?
Favours reaction which results in more molecules
How does decreasing concentration of product effect the reaction?
Favours forward reaction
How does decreasing concentration of reactant effect the reaction? 
Favours the reverse reaction
How does increasing the concentration of product effect the reaction? 
Favours the reverse reaction
How does increasing the concentration of reactant effect the reaction? 
Favours the forward reaction