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A manometer attached to a flask contains...

A manometer attached to a flask contains with ammonia gas have no difference in mercury level initially as shown in diagram. After sparking into the flask, ammonia is partially dissociated as `2NH_(3)" (g)"rarr N_(2)" (g)"+3H_(2)" (g)"` now it have difference of 6 cm in mercury level in two columns, what is partial pressure of `H_(2)" (g)"` at equilibrium?

A

9 cm of Hg

B

18 cm of Hg

C

27 cm of Hg

D

None of these

Text Solution

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The correct Answer is:
C
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