Near the completion of a chemical reaction, the average rate is:
Correct answer: B. Higher than the instantaneous rate
- A. Lower than the instantaneous rate
- B. Higher than the instantaneous rate
- C. Equal to the instantaneous rate
- D. None of these options is correct
Explanation
In the beginning, the instantaneous rate is higher than the average rate. At the end of the interval, the instantaneous rate is lower than the average rate. In other word, average rate is higher than instantaneous rate.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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