The rate law of a reaction is, rate = k[A]2[B]. On doubling the concentration of both A and B, the rate of reaction increases_time.
Correct answer: C. 8
- A. 4
- B. 9
- C. 8
- D. 2
Explanation
The rate law of a reaction is given by:rate = k[A]2 [B].If we double the concentration of both A and B, the new rate of reaction will be:new rate = k([2A])2([2B]) = k(4[A] )(2[B]) = 8k[A] [B].Therefore, the new rate of reaction is 8 times the original rate of reaction.
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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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