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The given figure shows a gas trapped in ...

The given figure shows a gas trapped in part X of an apparatus containing mercury.
If the atmospheric pressure is 760 mm Hg, then what is the pressure of the gas? (Figure is not drawn to the scale.)

A

80 mm Hg

B

150 mm Hg

C

300 mm Hg

D

910 mm Hg

Text Solution

Verified by Experts

The correct Answer is:
D

The pressure of the gas is equal to the pressure on the same level in the other limb.
`:.` Total pressure of the gas, P = atmospheric pressure + pressure due to mercury column
= (760 + 150 mm) of Hg = 910 mm of Hg
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