Understanding Dalton's Law of Partial Pressures

What does Dalton's Law of Partial Pressures state about the total pressure in a closed system?

• The total pressure is the average of the partial pressures of all gases.

• The total pressure is the sum of the partial pressures of all gases present.

• The total pressure is equal to the pressure of the gas with the highest moles.

• The total pressure is the difference between the highest and lowest partial pressures.

In the sample problem, how many moles of nitrogen are present in the closed system?

• Four moles

• Two moles

• Three moles

• One mole

What is the total pressure in the system as given in the sample problem?

• 1800 T

• 1200 T

• 1000 T

• 1500 T

How is the partial pressure of oxygen calculated in the sample problem?

• By adding the pressures of nitrogen and fluorine.

• By subtracting the pressure of nitrogen from the total pressure.

• By multiplying the number of moles of oxygen by the partial pressure per mole.

• By dividing the total pressure by the number of moles of oxygen.

What is the partial pressure of fluorine in the system?

• 400 T

• 300 T

• 200 T

• 100 T