The conditions under which a chemical reaction occurs has great effect on the speed or rate at which occurs. These conditions are often termed the factors that affect a reaction rate. The key factors that affect a chemical reactions rate are;
    1. Concentration of reacting substances
    2. Temperature under which the reaction occurs
    3. Nature of the reactants ( state and type of reactants )
    4. Surface area ( heterogeneous system involving a solid )
    5. Presence of Catalysts.
Activities on Factors
i) A large number of experiments and demonstrations are available to help students study such factors. The one below will give students an introduction to the measurement of rate and the factors that affect rate.
candle
Laboratory
Rate of a Burning Candle;

Click on the picture of the candle and complete the lab on the rate of a burning candle and the factors that affect this rate


Demonstration / Labs relating to factors

1. Introduction to rates
2. Catalysts
3. Concentration
4. Temperature
5. Surface Area