Dalton's Law

On Venus, the atmospheric pressure is 2700 mmHg and nitrogen gas makes up 3.0% of the atmosphere. What is the partial pressure of nitrogen on Venus?

• 2697 mmHg

• 81 mmHg

• 2619 mmHg

• 3 mmHg

A flask holds five times as many moles of N₂ as O₂. If the total pressure in the jar is 18 atm, what is the pressure exerted by oxygen?

• 18 atm

• 6 atm

• 3 atm

• 15 atm

If two gases, A and B, in separate 1 liter containers exert pressures of 2 atm and 3 atm respectively, what will be the pressure exerted when both gases are put together in a single 1 liter container?

• 5 atm

• 6 atm

• 10 atm

• 11 atm

• 0.2 atm

• 0.3 atm

• 0.4 atm

• 0.5 atm

Complete the sentence using total, partial, or complete. The pressure that one particular gas exerts when it is part of a mixture of gases is called the pressure of that gas.

(a)  

Argon makes up 0.93% of the atmosphere. In a given sample of air, the partial pressure of argon is 6.54 mmHg. What is the pressure of the sample?

• 703 mmHg

• 70.3 mmHg

• 654 mmHg

• 760 mmHg

Increasing the pressure in the cylinder by adding a gas not involved in the reaction will increase the total gas pressure in the cylinder.

• TRUE

• FALSE

In a mixture of gases, each gas exerts pressure independently of the others.

• TRUE

• FALSE

Dalton's Law states...

• that at a constant temperature the volume of a confined ideal gas varies inversely with its pressure.

• that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases

• how gases tend to expand when heated

• that the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.

What is the total pressure of a mixture of gases where the pressure of gas 1 is 2.0 atm, the pressure of gas 2 is 1.0 atm, and the pressure of gas 3 is 0.5 atm?

• 2.5 atm

• 3.5 atm

• 0.5 atm

• 4 atm