CBSE Class 12-science Answered
the activation energy of a reaction is 75.2kj/mol in the absence of a catalyst and 50.14kj/mol with a catalyst.how many times will the rate of reaction grow in the presence of the catalyst if the reaction preceeds at 25degree celcius?
Asked by | 24 Jul, 2011, 04:02: AM
Expert Answer
According to A rrhenius equation,
Let for uncatalysed reaction , 
--------(i)
--------(i)And , for catalysed reaction ,
---------(ii)
---------(ii)Subtracting equation (i) from equation (ii)
= 
= 4.39
Taking antilog on both sides,we have
Therefore rate of reaction increased by 2.45 x 104 times
Answered by | 25 Jul, 2011, 10:01: AM
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