Unit of rate and rate constant are same for:

Correct answer: D. Zero order reaction

  • A. First order reaction
  • B. Second order reaction
  • C. Third order reaction
  • D. Zero order reaction

Explanation

In the zero-order reaction, the rate is independent of the concentration of reactants and hence, the units of rate and rate constant become equal which is mol/L/time. So, the correct answer is option D.

This question appeared on the NUMS 2021 paper, which you can sit online with every answer explained.

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About Order of Reaction

Reaction order shows how the rate depends on the concentration of each reactant, as expressed in the rate law. Coverage includes zero, first and second-order reactions, integrated rate equations, half-life, units of rate constants and the distinction between overall order and molecularity.

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