Calculating Rates of Reactions

• The relative amounts of all the reactants and products at equilibrium depend on the conditions of the reaction
• If a system is at equilibrium and a change is made to any of the condition, then the system responds to counteract the change
• The effects of changing conditions on a system can be predicted using Le Chatelier's Principle
• The rate of a chemical reaction can be found by measuring the quantity of a reactant used or the quantity of product fired over time
• mean rate of reaction = quantity of reactant used / time
• mean rate if reaction = quantity of product formed / time