Moderate

Unit of rate of reaction for a second order mol-1 reaction is

Correct answer: B. mol dm-3s-1

  • A. s-1
  • B. mol dm-3s-1
  • C. mol dm-3s1
  • D. mol-2dm+6s-1

Explanation

The unit for the rate constant of a second order reaction is moldm-3s-1For a second order reaction, rate = k[A]2 moldm-3s-1= k(moldm-3s-1)2 k = moldm-3s-1

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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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