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Ideal Gas Law Review

Total questions: 20

Worksheet time: 41mins

Name
Class
Date
1.

Which of the following is NOT a factor in the ideal gas law?

a)

pressure

b)

temperature in Kelvins

c)

amount of a substance in moles

d)

type of container

2.
Which law helps us find the moles of gas in a sample?
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
3.

What does R stand for

a)

Ideal gas constant

b)

Molar constant

c)

Temperature constant

d)

Ideal gas law

4.

What does the variable "n" represent in the ideal gas law?

a)

pressure

b)

volume

c)

moles

d)

temperature

5.
In order to solve gas law calculations, temperature must be measured in:
a)
Fahrenheit
b)
Celsius
c)
Kelvin
d)
It doesn't matter 
6.

Which of the following variables is NOT correctly matched with its value for this problem:

What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20⁰C?

a)

V = 4.2 L

b)

R = 0.0821 L⋅atm∕mol⋅K

c)

n = 0.023 mol

d)

P = 20⁰C

7.

Choose the correct set of variables to solve the following problem: What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

a)

P = x (unknown), V = 3.2 mol, n = 1.2 atm, T = 20⁰C K

b)

P = 1.2 atm, V = 3.2 mol, n = 20⁰C, T = x (unknown)

c)

P = 293 K, V = 3.2 mol, n = x (unknown), T = 1.2 atm

d)

P = 1.2 atm, V = x (unknown), n = 3.2 mol, T = 293 K

8.
Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.
a)
7.18 L 
b)
7.81 L
c)
4.63 L
d)
4.36 L
9.
What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
PV=nRT
a)
14.19 atm
b)
16.53 atm
c)
18.42 atm
d)
22.54 atm
10.
If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?
a)
.002766 mole
b)
.0069 mol
c)
2.766 mol
d)
9.887 mol
11.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
12.

Solve the following probem:

What pressure is required to contain 0.23 moles of nitrogen gas in a 4.2 L container at a temperature of 20⁰C?

a)

1.32 atm

b)

0.048 atm

c)

2.49 atm

d)

19.32 atm

13.
What is the pressure exerted by 5.00 moles of nitrogen gas contained in a 30.0 Liter container at 25.0 °C?
a)

3670 atm

b)

0.245 atm

c)

4.08 atm

d)

605 atm

14.
At 17 °C, a 0.80 mole sample of a gas exerts a pressure of 1.2 atmospheres. What is the volume of the container?
a)

22.9 Liters

b)

2355 Liters

c)

0.0630 Liters

d)

15.9 Liters

15.
How many moles of propane gas are in a 7.0 L tank at 20°C and 5.45atm of pressure?
a)
0.629 mol
b)
1.59 mol
c)
23.2 mol
d)
917 mol
16.

A 7.50 liter sealed jar at 18 °C contains 0.25 moles of gas. What is the pressure in the container?

a)

7.38 atm

b)

0.796 atm

c)

0.684 atm

d)

0.398 atm

17.
How many moles of oxygen must be placed in a 3.00 liter container in order to exert a pressure of 2.00 atmospheres at 25 °C?
a)

146.8 moles

b)

0.245 moles

c)

21778 moles

d)

4.08 moles

18.
At what temperature (in Kelvin) would 4.0 moles of hydrogen gas in a 100 liter container exert a pressure of 1.00 atmospheres?
a)

0.0305 K

b)

0.487 K

c)

32.8 K

d)

304.5 K

19.

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under 0.998 atm pressure. 

a)

0 K 

b)

107 K 

c)

207 K 

d)

310 K 

20.

Solve the following problem:

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

a)

106.55 K

b)

53.3 L

c)

293 K

d)

64.15 L