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In a practical experiment, a student observes that the time taken for a reaction to complete is halved when the temperature is raised from 25 °C to 75 °C. Which statement best describes this observation?.
- A.The reaction rate has doubled because the temperature increase has doubled the activation energy.
- B.The reaction rate has increased because the higher temperature increases the proportion of molecules with energy above the activation energy.
- C.The reaction rate has decreased because the higher temperature reduces the concentration of reactants.
- D.The reaction rate is unchanged; the observation is due to experimental error.
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