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MHT CET202611 April 2026Morning ShiftChemistryChemical KineticsActual

Which of the following statements is NOT true about the rate constant?

Options

  1. AIt is proportionality constant in rate law that relates reaction rate to reactant concentrations.
  2. BIt is independent of concentration of reactant.
  3. CIt varies with temperature.
  4. DGreater the value of rate constant slower is the reaction.

Correct answer

D. Greater the value of rate constant slower is the reaction.

Step-by-step solution

According to the rate law, the rate of a reaction is given by Rate = k[ Reactants ]^ n . Here, k is the rate constant, which is a proportionality constant relating the reaction rate to the reactant concentrations. The rate constant k is independent of the initial concentration of the reactants but depends on the temperature as given by the Arrhenius equation k = A e^ -E_a/RT . From the rate law, it is evident that the rate of the reaction is directly proportional to the rate constant k . Therefore, a greater value

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