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Elemantary unimolecular reactions have f...

Elemantary unimolecular reactions have first order rate laws, elementary bimolecular reactions have second order rate laws. A rate law is often derived from a proposed mechanism by imposing the state approximation or by assuming that there is a pre -equilibrium. A proposed mechanism must be consistent with the experiment rate law.
In a gas phase reaction, a reaction takes place only if the reactant molecules get________________during the molecular collisions

A

threshold energy

B

activation emergy

C

both

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
If gaseous reactant molecules have the energy greater than (or) equal to activation energy, then the reaction takes place.
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