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Byju's Answer

Standard XII

Chemistry

Dalton's Law of Partial Pressures

The bulb of t...

Question

The bulb of the open-end manometer shown above contains a gas. Find out the statement which is relevant to this situation.
I. Only atmospheric pressure is exerted on the exposed mercury surface in the right side of the tube.
II. The gas pressure is greater than atmospheric pressure.
III. The difference in the height of mercury levels is equal to the pressure of the gas.

II only

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III only

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I and II only

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I and III only

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I, II and III

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Solution

The correct option is C I and II only
The bulb of the open-end manometer shown above contains a gas. The statement I and II only are relevant to this situation.
I. Only atmospheric pressure is exerted on the exposed mercury surface in the right side of the tube.
II. The gas pressure is greater than atmospheric pressure.
III. The difference in the height of mercury levels is equal to the difference in pressure of the gas and the atmospheric pressure.

Suggest Corrections

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I.	Only atmospheric pressure is exerted on the exposed mercury surface in the right side of the tube.
II.	The gas pressure is greater than atmospheric pressure.
III.	The difference in the height of mercury levels is equal to the pressure of the gas.