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How Does Concentration Affect the Rate of a Chemical Reaction?
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How Does Concentration Affect the Rate of a Chemical Reaction?>> Introduction The rates of chemical reactions are affected by 4 different factors; concentration, temperature, surface area and the presence of a catalyst. As for concentration, it affects the rate of reaction due to the collision theory. The name of this theory speaks for itself; it involves the colliding of particles. For example: In these diagrams, the black dots represent sodium thiosulphate and the blue dots represent hydrochloric acid. In the diagram on the left, it shows different particles all cramped and colliding with each other. This is because the higher the concentration, the more of these particles there are to collide, therefore speeding up the reaction. Whereas if there are fewer particles to collide like in the diagram on the right (weaker concentration), there are fewer particles therefore collisions are less frequent, therefore the reaction rate is slower. There are...
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