MHT CET202611 April 2026Morning ShiftChemistryChemical KineticsActual
Which of the following statements is NOT true about the rate constant?
Options
- AIt is proportionality constant in rate law that relates reaction rate to reactant concentrations.
- BIt is independent of concentration of reactant.
- CIt varies with temperature.
- 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