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Investigating rates of Reaction
Member rating: No Rating | Words: | Submitted: Fri Feb 04 2005
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Investigating rates of Reaction Aim The aim is to investigate the effect of changing the concentration of sodium thiosulate on the rate of the reaction between sodium thiosulphate and hydrochloric acid. Prediction I think that increasing the concentration will increase the rate of reaction. This is because in order for a chemical reaction to occur particles must collide with sufficient energy to react. This is the activation energy. If the particles do not have enough energy when they collide, they simply bounce off each other. If two particles move towards each other without the sufficient energy... ...when they collide, they will not react... ...they will simply bounce off one another, and remain un-reacted. Two particles with enough energy however... ...will collide... ...and react. In a solution, all of the particles will have different energy levels, only the particles with enough energy (more than the activation energy) will react. On the graph, the Activation energy is the black dotted line, so...
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