ED -Partial Pressure

The graph below illustrates the change in the volume of a gas sample as its temperature rises at constant pressure. What temperature is represented by point B?

• 546 K

• 298 K

• 273 K

• 0 K

A sealed flask contains a mixture of 1.0 mole of N₂(g) and 2.0 moles of O₂(g) at 25°C. If the total pressure of this gas mixture is 6.0 atmospheres, what is the partial pressure of the N₂(g)?

• 6.0 atm

• 3.0 atm

• 2.0 atm

• 9.0 atm

A certain volume of gas that contains an equal number of hydrogen and oxygen molecules has a pressure of 0.6 atmosphere. The partial pressure due to the oxygen molecules is

• 0.1 atm

• 0.2 atm

• 0.3 atm

• 0.6 atm

Gas samples A, B, and C are contained in a system at STP. The partial pressure of sample A is 38.0 kPa and the partial pressure of sample B is 19.0 kPa. What is the partial pressure of sample C?

• 19.0 kPa

• 38.0 kPa

• 44.3 kPa

• 63.3 kPa

When 7.00 moles of gas A and 3.00 moles of gas B are combined, the total pressure exerted by the gas mixture is 76.0 kPa. What is the partial pressure exerted by gas A in this mixture?

• 76.0 kPa

• 22.8 kPa

• 53.2 kPa

• 76.0 kPa

A 100-milliliter sample of helium gas is placed in a sealed container of fixed volume. As the temperature of the confined gas increases from 10.0°C to 30.0°C, the internal pressure

• decreases

• increases

• remains the same

Tags

NGSS.HS-PS3-4

As the pressure on a given sample of a gas in a close container increases at constant temperature, the mass of the sample

• decreases

• increases

• remains the same

As the pressure on a sample of a gas increases at constant temperature, the volume of the gas

• decreases

• increases

• remains the same

A mixture of oxygen, nitrogen, and hydrogen gases exerts a total pressure of 74 kPa at 0°C. The partial pressure of the oxygen gas is 20 kPa and the partial pressure of the nitrogen gas is 40kPa. What is the partial pressure of the hydrogen gas in this mixture?

• 14 kPa

• 20 kPa

• 40 kPa

• 74 kPa

The partial pressures of gases A, B, and C in a mixture are 0.750 atmosphere, 0.250 atmosphere, and 1.25 atmospheres, respectively. What is the total pressure of the gas mixture in kPa?

• 2.25 kPa

• 202 kPa

• 228kPa

• 301 kPa