Pressure conversions and reading manometers

What is the pressure of the sample of gas trapped in the open mercury manometer shown below if the atmospheric pressure is 736 mm Hg and h = 9.2 cm?

• 92 mm Hg

• 736 mm Hg

• 745.2 mm Hg

• 828 mm Hg

For the manometer illustrated here, the atmospheric pressure is 755 mm Hg. IF the stopcock is opened, the height (h) of the mercury column

(a)  

• will decrease
• will not change
• will increase
• cannot be predicted

Which gas has a greater pressure?

• air

• methane, CH₄

• The gas pressures are equal

What is the pressure of gas C, if the air pressure is 760 mm Hg?

• 1405 mmHg

• 645 mmHg

• 115 mmHg

If the atmospheric pressure is 740 mmHg, what is the pressure of the methane gas?

• 740 mmHg

• 770 mmHg

• 710 mmHg

• 30 mmHg

What pressure in mmHg is equal to 1.43 kPa?

• 1.43 mmHg
• 10.7 mmHg
• 101.325 mmHg
• 760 mmHg

What pressure in kPa is equal to 2.65 atm?

• 268 kPa
• 0.0261 kPa
• 39.0 kPa
• 265 kPa

In which of the following manometers is the gas pressure equal to the atmospheric pressure?

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In which of the following manometers is the gas pressure greater than the atmospheric pressure?

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In which of the following manometers is the gas pressure less than the atmospheric pressure?

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