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Standard VIII
Chemistry
Collision Theory
Addition of c...
Question
Addition of catalyst at 300K increases the rate by a factor of 36.By how many kJ activation energy of catalysed pathway is less than the activation energy of original pathway?(\log6=0.78 R=8.3) 1.6kJ 2.9kJ 3.10kJ 4.12kJ
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Q.
Assertion :The activation energy for an uncatalysed reaction is less than for a catalysed reaction Reason: Negative catalyst increases the activation energy
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Q.
The following data were obtained for a given reaction at
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Catalysed
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The factor by which rate of catalysed reaction is increased, is:
Q.
A hydrogenation reaction is carried out at 500 K. If the same reaction is carried out in the presence of a catalyst at the same rate, the temperature required is 400 K. Calculate the activation energy of the catalysed reaction if the catalyst lowers the activation energy barrier by 20 kJ/mol.
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