CBSE Class 12-science Answered
difference between order and molecularity of reaction?
Asked by | 13 May, 2013, 10:34: PM
Expert Answer
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Order |
Molecularity |
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It is the sum of powers of the concentrations in the rate law expressions. |
It is the number of moleculesr of the reactants taking part in an elementary reaction. |
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Order corresponds to the overall reaction. |
Molecularity is for elementary reactions. |
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Order might involve one elementary reaction or it might involve a sequence of elementary reactions. |
Molecularity is a part of the whole reaction. |
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It is an experimentally determined value. |
It is a theoretical concept. |
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It can have fractional value. |
It is always a whole number. |
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It can assume zero value. |
It can not have zero value. |
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Order of a reaction can change with the conditions such as pressure, temperature, concentration etc. |
Molecularity is invariant for a chemical equation. |
Answered by | 14 May, 2013, 10:45: AM
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