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See what effect changing the temperature has on the rate of reaction between sodium thiosulphate and hydrochloric acid.
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| Submitted: Tue Apr 06 2004
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Background Collisions and reactions For a chemical reaction to occur, reactant particles must collide. * Increasing the temperature of a reaction increases the rate of a reaction. At the higher temperatures reactant particles move faster and collide more often and more violently. * Increasing the concentration of reactants increases the rate of a reaction. This is because there are more particles in the same volume so more collisions are possible every second. * Breaking up solids into smaller pieces increases reaction rate because this increases the total surface area. Increasing the surface area must increase the number of particles of the solid in contact with the other reactant in solution. * Using a catalyst increases the rate of a reaction. Catalysts are not used up in a reaction Activation energy For a chemical reaction to take place, some bonds in the reactants must be broken. The colliding particles must have enough energy to break these...
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