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Ideal Gas Law

Total questions: 40

Worksheet time: 1hrs 29mins

Name
Class
Date
1.
Gases have...
a)
A definite shape and volume
b)
A definite shape but no definite volume
c)
No definite shape but a definite volume
d)
No definite shape or volume
2.
What is the variable for this number 22.4 L
a)
P
b)
T
c)
n
d)
V
3.
What is the variable for this number 32oC
a)
P
b)
T
c)
n
d)
V
4.
What is the variable for this number 9.10 atm
a)
P
b)
T
c)
n
d)
V
5.
What is the variable for this number 1.5 mol
a)
P
b)
T
c)
n
d)
V
6.
PV=nRT
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
7.
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
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.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
10.

What does R stand for

a)

Ideal gas constant

b)

Real gas constant

c)

Temperature constant

d)

Ideal gas law

11.

Which is a correct unit for R?

a)

L.atm/mol.k

b)

L.atm

c)

mmHg/mol.K

d)

L.atom/mol

12.
Determine the Celsius temperature of 2.49 moles of gas contained in a 1.00-L vessel at a pressure of 143 kPa. 
a)
-266 degrees C
b)
-622 degrees C
c)
622 degrees C 
d)
266 degrees C
13.
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
14.
The ideal gas law is an equation that relates the  what  variables to a constant of R.
a)
volume, pressure, temperature
b)
volume, temperature, pressure, amount of gas particles
c)
volume, pressure
d)
volume, temperatue
15.
In the ideal gas law, which variable represents the gas constant?
a)
n
b)
R
c)
T
d)
V
16.
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
17.
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
18.

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

a)

pressure

b)

volume

c)

moles

d)

the gas constant

e)

temperature

19.
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
20.

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

21.

It's dissolved in your blood, and in your soda. It's easy to forget that we're submerged in an ocean of ___

a)

water

b)

coffee

c)

sugar

d)

gas

22.

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

23.

Determine the Celsius temperature of 2.49 moles of gas contained in a 1.00-L vessel at a pressure of 143 kPa. (Remember that K = C + 273)

a)

-266 degrees C

b)

-622 degrees C

c)

622 degrees C

d)

266 degrees C

24.
A 2.00 L sample of pure oxygen gas (O2) is measured at STP.  How many moles of oxygen is this?
a)
24.4 mol
b)
0.007 mol
c)
1.44 mol
d)
0.09 mol
25.

We use two R values: 0.0821 and 8.314. How do you know which to use for a problem?

a)

The units for pressure

b)

The units for temperature

c)

The units of volume

d)

The amount of moles

26.

In the following, what is the unknown variable:

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

b)

V

c)

n

d)

T

27.

In the following, what will be the value for R:

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)

0.0821 L⋅atm∕mol⋅K

b)

8.314 L⋅kPa∕mol⋅K

c)

293 K

d)

1.2 atm

28.

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

29.

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

30.

If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature

a)

102.3

b)

204.6

c)

408.1

d)

1023.0

e)

none are correct

31.

If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 Liters, and a temperature of 87 °C, how many moles of gas do I have?

a)

5.14

b)

1.26

c)

032

d)

0.62

e)

none are correct

32.

If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container?

a)

12.9 psi

b)

430 mm Hg

c)

1.6 atm

d)

16.6 kPa

e)

none are correct

33.

If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 °C, what is the volume of the container that the gas is in?

a)

57.5

b)

115

c)

231

d)

2311

e)

none are correct

34.

If I have 21 moles of gas held at a pressure of 78 atm and a temperature of 900 K, what is the volume of the gas?

a)

19.9

b)

39.8

c)

399.0

d)

201.2

e)

none are correct

35.

What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20.°C?

a)

13 atm

b)

0.13 atm

c)

0.27 atm

d)

27 atm

e)

none are correct

36.

In the ideal gas law, P = ​ (a)   , V = ​ (b)   , n = ​ (c)   , R = ​ (d)   , and T = ​ (e)  

Choose from the below words
pressure
volume
moles
gas law constant
temperature
37.

Select the option that has all 5 variables in the correct units

a)

P = kPa

V = L

n = grams

R = 0.0821 L⋅atmmol⋅K0.0821\ \frac{L\cdot atm}{mol\cdot K}

T = Celsius

b)

P = atm

V = mL

n = moles

R = 0.0821 L⋅atmmol⋅K0.0821\ \frac{L\cdot atm}{mol\cdot K}

T = Kelvin

c)

P = atm

V = L

n = mole

R = 0.0821 L⋅atmmol⋅K0.0821\ \frac{L\cdot atm}{mol\cdot K}

T = Kelvin

d)

P = Pa

V = L

n = mole

R = 0.0821 L⋅atmmol⋅K0.0821\ \frac{L\cdot atm}{mol\cdot K}

T = Celsius

38.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
39.
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
40.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

a)

The pressure will increase

b)

The pressure will decrease

c)

The pressure will remain constant

d)

The pressure will equalize

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