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Karnataka Board PUCPUC Science 2nd PUC Class 12

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?

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Question

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?

Short Answer
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Solution

The reaction \[\ce{X -> Y}\] follows second-order kinetics.

Therefore, the rate equation for this reaction will be:

Rate = k[X]2

If the concentration of X is increased to three times, then [r'] = k[3X]2

`(r')/r = (k [3 X]^2)/(k [X]^2)`

= 9

Hence, the rate of formation will increase by 9 times.

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Chapter 3: Chemical Kinetics - Intext Questions [Page 71]

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NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 3 Chemical Kinetics
Intext Questions | Q 3.4 | Page 71

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