... they will collide with each other less often, with less energy. As a result, fewer collisions will be successful and so the rate of reaction will be low. However, with a high temperature, the particles are moving more quickly and therefore will collide with each other more often, with more energy. As a result, more collisions will be successful and the reaction will be quicker. * Concentration also affects rate of reaction. In a low concentration, the particles are spread out and so will collide with each other less often resulting in fewer successful collisions. However, in a high concentration, the particles are more densely spread, and so will collide more often resulting in more successful collisions and therefore a faster rate of reaction. The following diagram shows this: * Surface area - a small surface area results in a lower rate of reaction because there are less exposed particles to ...

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