Gas Laws Answers

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Which equation represents the combined gas law?

A
P subscript 1 V subscript 1 equals P subscript 2 V subscript 2.
Option A
B
StartFraction V subscript 1 over T subscript 1 EndFraction equals StartFraction V subscript 2 over T subscript 2 EndFraction.
Option B
C
StartFraction P subscript 1 V subscript 1 over T subscript 1 EndFraction equals StartFraction P subscript 2 V subscript 2 over T subscript 2 EndFraction.
Option C
D
P subscript 1 V subscript 1 T subscript 1 equals P subscript 2 V subscript 2 T subscript 2.
Option D
2
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A container holds 6.4 moles of gas. Hydrogen gas makes up 25% of the total moles in the container. If the total pressure is 1.24 atm. What is the partial pressure of hydrogen?Use .

Question illustration
A
0.31 atm
B
0.93 atm
C
5.2 atm
D
31 atm
3

Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions?

A
Boyle’s law
B
Charles’s law
C
Dalton’s law
D
Gay-Lussac’s law
4

Which law states that the pressure and absolute temperature of a fixed quantity of gas are directly proportional under constant volume conditions?

A
Boyle’s law
B
Charles’s law
C
Dalton’s law
D
Gay-Lussac’s law
5

If two gases are present in a container, the total pressure in the container is equal to

A
the sum of the pressures that are exerted by each of the two gases.
B
twice the sum of the pressures that are exerted by the individual gases.
C
the sum of the pressures that each gas would exert if they occupied twice the volume.
D
the sum of the pressures that each gas would exert if they occupied half the volume.
6

The incomplete table below shows selected characteristics of gas laws.NameVariablesConstantsEquation? ??Charles’s law???temperature, pressure?Combined gas lawpressure, temperature, volume??Which constants would most likely be filled in the first row of the table?

Question illustration
A
temperature and moles of gas
B
volume and temperature
C
pressure and volume
D
pressure and moles of gas
7

Five gases combined in a gas cylinder have the following partial pressures: 3.00 atm (N2), 1.80 atm (O2), 0.29 atm (Ar), 0.18 atm (He), and 0.10 atm (H). What is the total pressure that is exerted by the gases?Use .

Question illustration
A
5.08 atm
B
5.19 atm
C
5.27 atm
D
5.37 atm
8

Which law is described by saying that doubling the absolute temperature will double the pressure of a sample of gas in a rigid container?

A
Boyle’s law
B
Charles’s law
C
Dalton’s law
D
Gay-Lussac’s law
9

The gas in the piston is being heated, and the piston has moved upward. The observation will be summarized in a row of the incomplete table below.RowNameObservationVariables1Boyle's law Volume increases when pressure decreases?2Charles’s law??3Gay-Lussac’s law?Temperature, pressure4Combined gas law??What are the variables for this piston?

Question illustration
A
temperature only
B
temperature and volume
C
pressure and number of molecules
D
volume and number of molecules
10

A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of gas Y?Use .

Question illustration
A
0.50 atm
B
1.6 atm
C
2.1 atm
D
2.8 atm

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