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rate of reaction

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Consider the following reaction:
A+B----AB

For a certain set of initial concentrations of A and B, it takes 10 seconds to produce 0.1 mmol of AB at 20 degrees celsius and 150 seconds at 0 degrees celsius. What is the ratio of the rate at 20 degrees to that at 0 degrees?

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The rate of reaction is investigated in detail.

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