Differences Between Order and Molecularity
المؤلف:
Arun Bahl, B.S. Bahl and G.D.Tuli
المصدر:
Essential Physical Chemistry
الجزء والصفحة:
............
23-9-2018
778
Differences Between Order and Molecularity
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Order of a Reaction
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Molecularity of a Reaction
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- It is the sum of powers of the concentration terms in the rate law expression.
- It is an experimentally determined value.
- It can have fractional value.
- It can assume zero value.
- Order of a reaction can change with the conditions such as pressure, temperature, concentration.
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- It is number of reacting species undergoing simultaneous collision in the elementary or simple reaction.
- It is a theoreticalconcept.
- It is always a whole number.
- It cannot have zero value.
- Molecularity is invariant for a chemical equation.
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