Question

The given figure shows a gas trapped in part x of an apparatus containing mercury.If the atmospheric pressure is 760mm Hg , then what is the pressure of the gas?​

Answer 1

Answer:

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Answer 2

Answer:

Check the pressure entered at the required points in the figure.

If Patm is expressed as 760 mm of mercury, then additional pressure ' ρgh ' is 150 mm of mercury.

then pressure of trapped gas is ( 760 + 150 ) = 910 mm mercury

 

in terms of kPa :-    760 mm of mercury = 101.325 kPa ; hence 910 mm of mercury = (910/760)×101.325 = 121 kPa

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