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Standard XII
Chemistry
Dalton's Law of Partial Pressures
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.

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  1. II only
  2. III only
  3. I and II only
  4. I, II and III
  5. I and III only

A
I, II and III
B
II only
C
I and III only
D
III only
E
I and II only
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Solution
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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.

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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.

481559.JPG
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