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Describe the salient features of the collision theory of reaction rates of bimolecular reactions. |
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Answer» Solution :COLLISION theory of reaction rate bimolecular reactions salient features. `to` The reaction molecules are assumed to be hard SPHERES `to` The reaction is postulated to occur when molecules colloide with each other. `to` The number of collision per second per unit volume of the reactin maxture is KNOWN as collision frequency (Z). `to` For a bimolecular elementary reaction `A+B to` products Rate `=Z_(AB). e^(-E_(a)//RT),Z _(AB)=` collision frequency. `to` All COLLISIONS do not lead to product formation. `to` The collisions with sufficient kinetic energy (Threshold energy) are respnsible for product formation. These are CALLED as effective collisions. `to` To account for effective collisios a factor p called to probability factor or steric factor is introduced. Rate `=P Z_(AB), e^(-E_(a)//RT)` |
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