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Molecularity is ___________ value and order is ___________ value.

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Molecularity is ___________ value and order is ___________ value.

(a) an integer, a fractional

(b) a fractional, an integer

(c) both fractional

(d) both integers

I have been asked this question in class test.

My query is from Reaction Order and Elementary Rate Law topic in portion Rate Laws and Stoichiometry of Chemical Reaction Engineering

1 Answer

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Best answer
Correct choice is (a) an integer, a fractional

Best explanation: Order is empirical, hence can be a fractional value but molecularity refers to the mechanism and is applicable only for elementary reactions.

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