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For dissociation of NH(3) giving N(2) an...

For dissociation of `NH_(3)` giving `N_(2)` and `H_(2)` gases, the partial pressures at equilibrium are 100,80,80 torr respectively. If som `N_(2)` gas is removed and at new equilibrium partial pressure of `H_(2)` becomes 128 torr then the partial pressure of `N_(2)` remaining will be approx.

A

9 torr

B

71 torr

C

8 torr

D

72 torr

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The correct Answer is:
A
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