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For a certain reaction large fraction of molecules has energy more than the threshold energy,yet the rate of reaction is very slow.Why? |
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Answer» Solution :Though the reacting molecules MAY be having energy more than THRESHOLD energy,yet they may not be effective due to lack of PROPER orientation. For chemical reaction as per collision theory reactant and molecule must have threshold energy and collision must be in proper direction then PRODUCT will FORM ,if reactant molecule do not have proper direction than reaction will not take place or rate is slow. Rate =`PZ_(AB)e^(-E_(a)/(RT))`,where P=proper orientation |
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