Why is molecularity applicable only for elementary reactions and order for both?
Molecularity is defined by the mechanism of a single step (collision count). Complex reactions occur in multiple steps, so a single "collision number" for the whole process is meaningless. Order is an experimental quantity derived from the overall rate law, applicable to any reaction sequence.
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Start Practicing NowDefine Instantaneous Rate of a reaction mathematically for a reactant R.
Why does the rate of any reaction generally decrease during the course of the reaction?
For the reaction , express the rate of reaction in terms of the disappearance of HI.
What are the units of rate of a reaction for solutions and gases?.
How does the rate of disappearance of a reactant relate to the rate of appearance of a product in ?.