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How does changing the temperature affect the rate of reaction?
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Alexandra Waddington 10A How does changing the temperature affect the rate of reaction? Planning an experiment In my experiment I am going to investigate the rate of reaction with sodium thiosulphate and hydrochloric acid. Sodium Thiosulphate + Hydrochloric Acid Sodium Chloride + Water + Sulphur Dioxide + Sulphur Na2S2O3 (aq) + 2HCL (aq) 2NaCl (aq) + H2O (aq) + SO2 (g) +S(s) The following factors will affect the outcome variable (rate of reaction) of the experiment; Collision theory * Temperature When the temperature is increased the particles all move quicker as they contain more energy. If the particles are moving quicker more collisions will take place. * Concentration of the reactants (sodium thiosulphate and hydrochloric acid) If the solution is more concentrated it means there are more particles of reactant moving about between the water molecules. This makes the important collisions between the reactants more likely. * A catalyst A catalyst works by giving the reacting particles a surface to...
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