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Gas Laws Review

Total questions: 20

Worksheet time: 19mins

Name
Class
Date
1.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
2.

What will happen to the volume of a gas if the pressure on the gas increases, with constant temperature ?

a)

Increase

b)

Decrease

c)

Nothing

d)

Explosion!

3.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
4.
When a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because the
a)
air molecules hit the walls of the tire less frequently
b)
rubber in the tires reacts with oxygen in the atmosphere
c)
air molecules speed up and collide with the tire walls more often
d)
air molecules diffuse rapidly through the walls of the tire.
5.

Which of the following is NOT a unit of Pressure?

a)

mmHg

b)

atm

c)

kelvin

d)

kPa

6.

Which equation would you use to solve the following problem:

"The volume of of 300 mL of gas at 1 atm is decreased to 100 mL. What is the new pressure?"

a)

P1V1 = P2V2

b)

V1/T1 = V2/T2

c)

(P1V1)/T1 = (P2V2)/T2

d)

None of the above

7.

Gas is in a rigid container at room temperature. What happens to pressure as temperature increases?

a)

pressure stays the same

b)

pressure decreases

c)

pressure increases

8.

Gas is in a flexible container at room temperature. What happens to pressure as volume increases?

a)

pressure stays the same

b)

pressure decreases

c)

pressure increases

9.

A gas is under 750 mm Hg of pressure. What is the pressure in atm?

1 atm = 760 mm Hg

a)

1.013 atm

b)

0.987 atm

c)

760 atm

d)

0.0013 atm

10.

A sample of H2(g) and a sample of N2(g) at the same temperature and pressure contain the same number of molecules. Each sample must have

a)

the same volume, but a different mass

b)

the same mass, but a different volume

c)

both the same volume and the same mass

d)

neither the same volume nor the same mass

11.
Each of the flasks shown below contain the same number of molecules at the same temperature.In which flask will the pressure be the highest?
a)
Flask 1
b)
Flask 2
c)
Flask 3
d)
Flask 4
12.
An ideal gas is contained in a volume V at temperature T. If the volume is doubled at constant pressure, what change will occur in the temperature?
a)
The temperature will be unchanged
b)
The temperature will be halved
c)
The temperature will be doubled
d)
Unable to determine without more information
13.

Which equation would you use to solve the following problem:

"A gas occupies 2 L of space at 0 C. What will its volume be at 100 C?"

a)

P1V1 = P2V2

b)

V1/T1 = V2/T2

c)

(P1V1)/T1 = (P2V2)/T2

d)

None of the above

14.
An ideal gas is sealed in a container at constant volume. If the temperature is increased to 4T, what would happen to the pressure?
a)
unchanged
b)
Increased to 4P
c)
Decreased to ¼ P
d)
Unable to determine without more information
15.
All molecules at the temperature has the same average kinetic energy.
a)
True
b)
False
16.

A gas is under 110 kPa of pressure. What is the pressure in atm?

1 atm = 101.3 kPa

a)

101.3 atm

b)

11,143 atm

c)

1.09 atm

d)

0.921 atm

17.

____ is a direct result of collisions between gas particles and the walls of their container.

a)

Volume

b)

Pressure

c)

Moles

d)

Temperature

18.

Which equation would you use to solve the following problem:

"A gas occupies 2 L of space at 0 C and 1 atm. What will its volume be at 100 C and 2 atm?"

a)

P1V1 = P2V2

b)

V1/T1 = V2/T2

c)

(P1V1)/T1 = (P2V2)/T2

d)

None of the above

19.

Which of the following affect the pressure a gas exerts on its container. Select ALL that apply!

a)

Mass of the particle

b)

Size of the particle

c)

Volume of the container

d)

Temperature of the gas

e)

The number of moles of gas in the container

20.

The pressure on a gas increases, and the volume of the gas increases. Which of the following could explain this situation?

a)

Increased pressure always results in a volume increase because the particles spread out

b)

The temperature of the gas also increased

c)

The temperature of the gas decreased

d)

None of the above; this is impossible