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Q.

The values of kp1 and Kp2 for the reactions XY+Z...(i) and A2B....(ii) are in the ratio 9 : l. If degree of dissociation of X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio:

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a

1:9

b

36:1

c

1:1

d

3:1

answer is B.

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Detailed Solution

KP1=nYnZnXP1Σn11KP2=nB2nA×P2Σn21
for X11-αY0α+Z0α for A11-α2B02α
 KP1KP2=P1P2×nYnZnX×nAnB2×Σn2Σn19=P1P2×αα1α×(1α)(2α)2×(1+α)(1+α) P1P2=4×9=36

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The values of kp1 and Kp2 for the reactions X⇌Y+Z...(i) and A⇌2B....(ii) are in the ratio 9 : l. If degree of dissociation of X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio: