1.

At 27^(@)C and 37^(@)C , the rates ofa reactionare given as 1.6 xx 10^(-2) mol L^(-1)s^(-1)and 3.2 xx 10^(-2)mol L^(-1)s^(-1) . Calculate the energy ofactivationfor thegivenreaction .

Answer»

SOLUTION :The ration of specific rates at two DIFFERENT temperatures are gives as,
`"log"(k_(2))/(k_(1))=(E_(a))/(2.303R)[(T_(2)-T_(1))/(T_(1)T_(2))]`
Substituting the VALUES `k_(1),k_(2),T_(1),T_(2)` and molar GAS constant R ,
`0.301=(E_(a)xx1000)/(2.303xx8.314)xx(10)/(300xx310)`
Energy of activation `=E_(a)=53" kJ mol"^(-1)`.


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