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For the given reaction: H(2) + I(2) ra...

For the given reaction:
`H_(2) + I_(2) rarr 2HI`
Given: `{:(T(K),1//T(K^(-1)),log k,),(769,1.3 xx 10^(-3),2.9,),(67,1.5 xx 10^(-3),1.1,):}`
The activation energy will be

Text Solution

Verified by Experts

`log_(e) K` vs `1/T` graph is linear with slope `-(E_(a))/(2.303R)`
`:.` Slope `=-E_(a)/(2.303R)`
`=((2.9-1.1))/((1.3xx10^(-3)-1.5xx10^(-3)))`
`=-9xx10^(3)`
`:. E_(a)=9xx10^(3)xx2.303xx2`
`=41.45xx10^(3) cal mol^(-1)`
`=41.45 kcal mol^(-1)`
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