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An endothermic reaction with high activation energy for the forward reaction is given by the diagram :

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Important Questions on Chemical Kinetics

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A reactant (A) forms two products :

A k 1 B Activation energy E a 1 A k 2 C Activation energy E a 2

If E a 2 = 2 E a 1 , then k1 and k2 will be related as :
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The rate of a reaction doubles when its temperature changes from 300 K to 310 K. Activation energy of such a reaction will be (R=8.314 JK-1 mol-1 and log 2=0.301)
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Assertion: rate of reaction doubles when the concentration of the reactant is doubles if it is a first order reaction.

Reason: rate constant also doubles.

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Assertion: Two different reactions can never have same rate of reaction.

Reason: Rate of reaction always depends only on frequency of collision and Arrhenius factor.

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Which of the following is used to absorb water?
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The heat evolved in physisorption lies in the range (kJ/mol) of:
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Adsorbed acetic acid on activated carbon is:

 

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A plot of logxm  versus log p for the adsorption of a gas on a solid gives a straight line with a slope equal to