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Q.

Elementary reaction 2A + B →products, carried out in a 10 litre vessel has the rate of reaction as r1.  If the volume of the vessel is doubled then the rate, r2 is related to r1 as 

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a

r1=8r2

b

r2=8r1

c

r1=4r2

d

r2=4r1

answer is C.

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Detailed Solution

2A+ B→product in elementary reaction

 rate k=[A]2[B]1

On doubling volume [A], [B] become half. So in this will make rate of reaction decrease by 18  times

r2=18r1   ⇒r1=8 r2 

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