A reaction is found to be second order with respect to B. If B is doubled, keeping every other substance constant, the rate of reaction will:
Correct answer: B. Increase four times
- A. Remain unchanged
- B. Increase four times
- C. Increase three times
- D. Double
Explanation
In a second-order reaction, the rate of reaction is directly proportional to the square of the concentration of the reactant.
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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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