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An increase in the concentration of the reactants of a reaction leads to change in
(a)heat of reaction
(b)threshold energy
(c)collision frequency
(d)activation energy

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Important Questions on Chemical Kinetics
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If the rate constant for a first order reaction is , the time required for the completion of of the reaction is given by

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For the chemical reaction , the correct option is:

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When initial concentration of the reactant is doubled, what happens to the half-life period of a zero order reaction?

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What is the correct difference between first and second order reactions?

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A first-order reaction has a specific reaction rate How much time will it take for the reactant to reduce to ?

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Mechanism of a hypothetical reaction is given below:
(i)
(ii)
(iii)
The overall order of the reaction will be

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The decomposition of phosphine on tungsten at low pressure is a first-order reaction. It is because the

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The rate of a first-order reaction is at second and at seconds after initiation of the reaction. The half-life period of the reaction is:
