A Gas Vessel Is Attached to an Open-End Manometer Containing

question 155

Multiple Choice

A gas vessel is attached to an open-end manometer containing a nonvolatile liquid of density 0.791 g/mL as shown below. The difference in heights of the liquid in the two sides of the manometer is 43.4 cm when the atmospheric pressure is 755 mm Hg. Given that the density of mercury is 13.6 g/mL, the pressure of the enclosed gas is __________ atm.

• A)1.03
• B)0.967
• C)0.993
• D)0.990
• E)0.987

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