. Choose all the correct phrases to complete this statement: For the reaction me
ID: 1086679 • Letter: #
Question
. Choose all the correct phrases to complete this statement:
For the reaction mechanism,
k1
NO2Cl(g) --> NO2(g) + Cl(g) slow
k2
NO2Cl(g) + Cl(g) --> NO2(g) + Cl2(g) fast
the rate determining step has the largest activation energy
each step is unimolecular.
the overall reaction is NO2Cl(g) --> NO2(g) + Cl2(g)
the rate law for the rate determining step is, Rate = k1[NO2Cl].
the rate determining step has the largest activation energy
each step is unimolecular.
the overall reaction is NO2Cl(g) --> NO2(g) + Cl2(g)
the rate law for the rate determining step is, Rate = k1[NO2Cl].
Explanation / Answer
The correct phrases are
the rate determining step has the largest activation energy
(hence to acquire this energy for the reactants, it takes time and rate determining step is slow)
the rate law for the rate determining step is, Rate = K1[NO2Cl]
Since in the rate determining step, only one reactant involve, the order of reaction is one and hence the rate law is as shown above.
The wrong phrases are
1. each step is unimolecular
No, the second step is bimolecular
2. the overall reaction is NO2Cl(g) --> NO2(g) + Cl2(g)
No, the overall reaction is 2NO2Cl(g) --> 2NO2(g) + Cl2(g)
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