Factors affecting rate and catalysis

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predict and explain the effect of changing concentration on the rate of a reaction in terms of collision frequency
predict and explain the effect of changing pressure on the rate of reactions involving gases in terms of particle spacing and collision frequency
predict and explain the effect of changing surface area of a solid on reaction rate in terms of exposed particles and frequency of collisions

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predict and explain the effect of changing temperature on reaction rate in terms of particle kinetic energy, collision frequency and the greater proportion of particles with energy at least equal to the activation energy

describe what a catalyst does and explain that catalysts increase rate without being used up chemically in the overall reaction

interpret experimental results comparing rates under different conditions and evaluate the need to control variables for a fair test

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