IIT JEE past question Kinetics 2

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A hydrogenation reaction is carried out at 500K. If the same raction is carreid out in th epresence of a catalyst at the same rate the temperature required is 400K.

calculate the Activation energy of the reaction if the catalyst lowers the activation barrier by 20 kJ/mol

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skygirl ·2009-03-27 22:56:55

rate is constant so ...

k(normal condition) = k(catalytic condition)

=> Ea / Ea(cat) = T/T(cat)

=> Ea / Ea - Î”E = T/T(cat)

=> Ea/Ea-20 = 5/4

=> 4Ea = 5Ea - 100

=>Ea=100kJ.

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Lokesh Verma ·2009-03-27 22:59:02

good one :)

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IIT JEE past question Kinetics 2

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