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1 July, 07:06

What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 722 torr and the level of mercury in the arm connected to the container is 8.60 cm higher than the level of mercury open to the atmosphere A) 656 mm Hg

B) 8.60 mm Hg

C) 751 mm Hg

D) 860 mm Hg

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Answers (1)
  1. 1 July, 08:51
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    636 mm Hg

    Explanation:

    The pressure in the gas container is equal to the atmospheric pressure minus the height of mercury:

    Atmospheric pressure = 722 torr = 722 mm Hg

    Height = 8.60 cm = 86 mm Hg

    Pressure = 722 - 86 = 636 mm Hg

    So none of the given options is correct, the correct answer is 636 mm Hg.
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