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Can a reaction have negative activation energy. Justify. |
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Answer» Solution :`K=Ae^(-E_(a)//RT)` If `E_(a)" is "-ve, E^(-E_(a)//RT)=e^(x)" where "x=(E_(a))/(RT)` `e^(x) =1+x+(x^(2))/(2!) +(x^(3))/(3!)…..x LT lt lt 1+x=1+(E_(a))/(RT)` `k=A (1+(E_(a))/(RT))` `k gt gt A` Which is impossible HENCE `E_(a)` is never negative. |
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