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A catalyst lowers the enrgy of activatio...

A catalyst lowers the enrgy of activation by `25%`, temperature at which rate of uncatalysed reaction will be equal to that of the catalyst one at `27^(@)C` is `:`

A

`400^(@)C`

B

`127^(@)C`

C

`300^(@)C`

D

`227^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`(E_(a))/(T_(1))=(E_(a)^(c))/(T_(2))rArr (T_(2))/(T_(1))=(E_(a)^(c))/(E_(a))=(75)/(100)=0.75," "(300)/(T_(1))=0.75 rArr T_(1) =(300)/(0.75) =400 K =127^(@)C`
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