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Trimolecular reactions are uncommon because:

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Important Questions on Chemical Kinetics

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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
What is "molecularity of a reaction? How is it different from the "order" of a reaction? Name one bimolecular and one trimolecular gaseous reactions.
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Higher order (>3) reactions are rare due to:
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Differentiate between order and molecularity of reaction.
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Write two differences between order of reaction and molecularity.
EASY
Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
An example of trimolecular reaction is 
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Write four differences between molecularity and order of a  reaction.
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
For a zero order reaction will the molecularity be equal to zero? Explain.
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction

Write the differences between order and molecularity of a reaction. 

 

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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction

Which of the following relation is correct for elementary bimolecular reaction?

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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
What is pseudo unimolecular reaction? Explain with an example?
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Why molecularity is applicable only for elementary reactions and order is applicable for elementary as well as complex reactions?
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
x2(g)+y2(g)→2xy(g) the experimental data indicates that rate =kx2y21/2. The molecularity and the order of reaction, respectively, are
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction

Define molecularity and order of the reaction. In a first order reaction, the concentration of substance reduces to half of the initial concentration in 40 seconds. Calculate velocity constant for the reaction.

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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Write definition of Molecularity of reaction.
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction

What is difference between molecularity of reaction and order of reaction?

HARD
Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
According to the Arrhenius equation,
HARD
Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
What is molecularity of a reaction? What is order of a reaction? Name one bimolecular and one trimolecular gaseous reaction. 
 
HARD
Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
Distinguish between order and molecularity of a reaction.
EASY
Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
The conversion of cis-1,2-dichloroethene to trans-1,2-dichloroethene is an example of
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Chemistry>Physical Chemistry>Chemical Kinetics>Molecularity of a Reaction
A certain reaction occurs in two steps as:

(i) 2SO2g+2NO2g→2SO3g+2NOg

(ii) 2NOg+O2g→2NO2g

In the reaction,