.
ii) “ The term molecularity is in significant for complex reaction”- Explain with a proper example.
Answers
ANSWER;
Molecularity of a reaction is defined as the number of reactant molecules (or atoms or ions) taking part in an elementary reaction.
(a) Molecularity of a reaction is always an integer.
(b) It doesn't change with experimental conditions.
(c) The molecularity of a reaction cannot have a fractional or zero values.
(d) The minimum value of the molecularity is one.
The molecularity of a reaction can be explained by considering the following example :
Consider a reaction, i.e.,
N
2
O
5
(g)⟶2NO
2
(g)+
2
1
O
2
(g)
In this reaction, only one molecule is taking part in the reaction, therefore the rate law expression for this reaction is :
Rate =k[N
2
O
5
]
Hence, the reaction is unimolecular and first order.
Similarly, a reaction can be bimolecular or trimolecular depending on the number of molecule taking part in the reaction.
Answer:
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