Partial Pressure and Manometers

The amount of force pushing on an area is the definition of....

• Fluid
• Viscosity
• Barometer
• Pressure

How can we increase the gas pressure inside a sealed container?

• Increase the number of particles inside the container
• Increase the temperature
• Decrease the volume of the container
• All of these

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

Tags

NGSS.MS-ESS2-5

A _____________ is the scientific  instrument used to measure air pressure.

• barometer
• thermometer
• mercury
• watch

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

• 2 atm
• 4 atm
• 3 atm
• 9 atm

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?

• 234 mmHg
• 1.37 mmHg
• 2.64 mmHg
• 1, 494 mmHg

The partial pressures of CH₄, N₂, and O₂ in a sample of gas were found to be 135 mm Hg, 508 mm Hg, and 571 mm Hg, respectively. Calculate the mole fraction of nitrogen.

• 20.4

• 0.470

• 0.418

• 0.751

Real gases deviate from ideal gas behavior because real gas particles have

• volume and some attraction for each other
• no volume and no attraction for each other
• no volume but some attraction for each other
• volume but no attraction for each other