Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsArrhenius EquationMedium2 minQB

ChemistryMediumassertion reason

Assertion : If temperature does not affect the rate of a reaction, then $E_{a} = 0$ .

Reason : Lesser the activation energy, slower will be the reaction.

Options:

Answer:

Solution:

The Arrhenius equation, $k = A e^{- E_{a} / RT}$ , shows that if temperature does not affect the rate constant ( $k$ ), then the activation energy ( $E_{a}$ ) must be zero. Thus, the Assertion is true. The Reason is false because a lower activation energy leads to a faster reaction rate, not a slower one.

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:Arrhenius Equation

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