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Gas Law Problems: V-T, T-P, and P-T, Diffusion rates

Total questions: 70

Worksheet time: 3hrs 39mins

Name
Class
Date
1.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
2.

When the pressure on a confined gas increases at constant temperature, the volume must...

a)
Increase
b)
decrease
c)

remain the same

3.
A gas occupies 4.98 L at 2.6 atm of pressure. What volume does it occupy at 1.8 atm pressure?
a)

13 L

b)
0.72 L
c)
7.2 L
d)

3.4 L

4.
The pressure on a sample of gas is increased from 1.0 atm to 3.0 atm. If the new volume is 0.52 L, find the original volume.
a)
0.52 L
b)

1.6 L

c)

0.17 L

d)

1.0 L

5.
For a teammate’s birthday party, Martellus Bennett needs to buy a helium tank to fill up all of the balloons. If the helium must be compressed from an original volume of 27.0 L at 14.7 psi, down to a volume of 3.00 L, what would be the final pressure of the helium?
a)

132 psi

b)
1.63 psi
c)
5.51 psi
d)

132 L

6.

A student added 15 L of air to a balloon at sea level (1.0 atm). If the student takes the balloon to Denver, where the air pressure is 0.85 atm, what will the new volume of the balloon be?

a)

24 L

b)

18 L

c)

32 L

d)

15 L

7.

A container with a movable piston contains 5.6 liters of gas at a pressure of 1.5 atm. Lucy compresses the gas until its volume is 4.8 L. What is the new pressure inside the container?

a)

6.3 atm

b)

2.4 atm

c)

1.8 atm

d)

8.6 atm

8.

A gas tank holds 2785 L of propane, C3H8, at 830. mm Hg. What is the volume (in L) of the propane at standard pressure?

Report your answer with the correct number of significant figures

(a)  

9.

A sample of neon occupies a volume of 461 mL at STP. What will be the volume (in mL) of the neon when the pressure is reduced to 93.3 kPa?

Report your answer with the correct number of significant figures

(a)  

10.

352 mL of chlorine under a pressure of 680. mm Hg are placed in a container under a pressure of 1210 mm Hg. The temperature remains constant at 296 K. What is the volume of the container in mL?

Report your answer with the correct number of significant figures

(a)  

11.

600. mL of air is at 20.0 °C. What is the volume (in mL) at 60.0 °C?

Report your answer with 3 significant figures

(a)  

12.

Calculate the decrease in temperature when 2.00 L at 21.0 °C is compressed to 1.00 L.

(a)  

13.

A gas occupies 900.0 mL at a temperature of 27.0 °C. What is the volume at 132.0 °C? (Report your answer with 4 significant figures)

(a)  

14.

What is the equation for Charles' Law?

a)

V = T

b)

V1T1 = V2T2

c)

T2 / V1 = T1 / V2

d)

V1 / T1 = V2 / T2

15.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
16.

There are 40 liters of helium in a balloon at a temperature of 100 K. If the temperature of the balloon is increased to 200 K, what will be the new volume of the balloon?

a)

80 L

b)

45 L

c)

54 L

d)

20 L

e)

40 L

17.

If a beach ball has a volume of 261 L at a temperature of 502 K, what will be the new temperature of the balloon if the volume decreases to 176 L?

a)

744 K

b)

0.0030 K

c)

339 K

d)

512 K

18.

The pressure remains constant over a sample of neon gas occupying a volume of 255 mL . The volume is now 323mL because the temperature has increased to 369 K. What was the original temperature of the gas?

a)

291 K

b)

223 K

c)

467 K

d)

76 K

19.

A sample of argon gas is at a temperature of 20. °C. The temperature is increased to 30.°C so that the volume is now 373 mL. What was the original volume?

a)

338 mL

b)

411 mL

c)

254 mL

d)

249 mL

20.

The pressure remains constant over a sample of helium gas occupying a volume of 638 mL. The temperature is increased to 471 K and the volume is now 953 mL. What was the original temperature?

a)

315 K

b)

1290 K

c)

704 K

d)

133 K

21.

If the Kelvin temperature of a gas is doubled, the volume of the gas will increase by ____.

a)

A factor of 2

b)

A factor of 1

c)

A factor of 3

d)

A factor of 0.5

22.

Tom Brady enjoys balloon animals from the carnival. He just received a balloon giraffe that has an initial temperature of 39.0°C and a volume of 1.28 L. If Gronkowski plays a trick on Tom, and puts his balloon giraffe into the freezer, what would be the new volume of the balloon if the temperature drops down to 8.0°C?

a)
1.42 L
b)
6.85 x 104 L
c)
3.78 L
d)
1.15 L
23.
The volume of a gas at 25ο C is 3.8 L.  What will be the volume of that gas at 57 ο C if the pressure is held constant?
a)

8.7 L

b)

4.2 L

c)

6.3 L

d)

3.5 L

24.

A balloon with 3L of air starts at a pressure of 233 kPa, then it rises several thousand feet to a pressure of 190 kPa. Which gas law would let you solve for the new volume?

a)
b)
c)
d)
25.
Edelman and Gronkowski want to play a game of beach volleyball. If the beach ball has a volume of  261 L at a temperature of 502 K, what will the temperature of the balloon be if the volume decreases to 176 L?
a)
744 K
b)
0.0030 K
c)
339 K
d)
512 K
26.

Which of the following best represents the temperature-volume relationship for a confined gas at constant pressure?

a)
b)
c)
d)
27.

Which of the following graphs shows the relationship between volume and Kelvin temperature for a confined gas at constant pressure?

a)
b)
c)
d)
28.

Which of the following graphs correctly shows the relationship between volume and pressure of a confined gas at constant temperature?

a)
b)
c)
d)
29.

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

30.

A gas occupies a volume of 5.6 liters at a temperature of 100 degrees Celsius. To what temperature must the gas be lowered, if it is to occupy 4.0 liters? Answer in Kelvin to one decimal place.

(a)  

31.

A gas exerts a pressure of 98.0kPa at 30. degrees Celsius. What will be the new pressure if the temperature is increased to 35 degrees Celsius? Round your answer to one decimal place.

(a)  

32.

A sample of sulfur hexafluoride gas occupies a volume of 5.10 liters at 198 degrees Celsius. What temperature is needed to reduce the volume to 2.50 liters? Round your answer to one decimal place.

(a)  

33.

A gas filled weather balloon with a volume of 55.0 liters is released at sea-level conditions of 755 torr. The balloon can expand to a maximum volume of 835 liters. What is the pressure (in torr) at which this volume is reached? Round your answer to one decimal place.

(a)  

34.

Which graph correctly shows the pressure-temperature relationship for an ideal gs at constant volume?

a)
b)
c)
d)
35.

A water bottle at STP is cooled to -155°C. What is the new pressure?

a)

3.2 atm

b)

0.43 atm

c)

1.8 atm

d)

0.27 atm

36.

What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?

a)

0.90 atm

b)

2.1 atm

c)

1.6 atm

d)

3.4 atm

37.

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

38.

A gas has a pressure of 98kPa at 30 degrees Celsius. What will be the new pressure if the temperature is increased to 35 degrees Celsius. Round your answer to one decimal place.

(a)  

39.

Hydrogen gas has a pressure of 14.2 psi at a temperature of 28 degrees Celsius. If the pressure is increased to 18.4 psi, what will be the new temperature in degrees Celsius? Round answer to one decimal place.

(a)  

40.
When heat is added to a sample of gas sealed in a container, which of the following will most likely happen?
a)
The temperature of gas will increase because the gas molecules will move much more slowly.
b)
The temperature of gas will decrease because the gas molecules will move faster
c)
The temperature of gas will increase because the gas molecules will move faster. 
d)
Temperature of gas will decrease because the gas molecules will stop moving
41.

The gas in an aerosol can exerts a pressure of 3.0 atm at 25°C. Directions on the can warn the user not to keep the can in a place where the temperature exceeds 100°C. What would the gas pressure in the can be at 100°C?

a)

3.8 atm

b)

2.4 atm

c)
12 atm
d)
0.75 atm
42.

A gas exerts a pressure of 699.0 mmHg at 40.0 °C. What is the Kelvin temperature of the gas at standard pressure?

(a)  

43.

If a gas in a closed container is pressurized from 15.0 atmospheres to 16.0 atmospheres and its original temperature was 25.0 °C, what would the final temperature of the gas be in degrees Celsius? (Be careful with sig figs!)

(a)  

44.

If the pressure of a gas is 25 atm at 200 K, what is the new temperature if the pressure goes down to 10 atm?

a)

60 K

b)

80 K

c)

300 K

45.

When the pressure on a confined gas increases at constant temperature, the volume must...

a)
Increase
b)
decrease
c)

remain the same

46.

When the pressure on a confined gas decreases at constant temperature, the volume must...

a)
Increase
b)
decrease
c)

remain the same

47.

What is the equation for Charles' Law?

a)

V = T

b)

V1T1 = V2T2

c)

T2 / V1 = T1 / V2

d)

V1 / T1 = V2 / T2

48.

If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mmHg?

Report your answer to the tenths place

(a)  

49.
A gas of volume V is placed in a balloon.  Determine the new volume of the balloon if the pressure is tripled. The new volume will be ____ what it was originally.  
a)
1/3 of
b)
1/6 of
c)
1/9 of
d)
 9 times
50.
A gas of volume V is placed in a balloon. The absolute (Kelvin) temperature is tripled. The volume will be _____ what it was originally. 
a)
1/3
b)
1/6
c)
3 times
d)
6 times
51.
A gas of volume V is place in a balloon. The pressure is reduced to 1/5 of the original pressure. The volume will be _____ what it was originally.  
a)
the same as 
b)
1/5
c)
9 times
d)
5 times
52.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
53.
What is standard temperature?
a)
0K
b)
0oC
c)
173 K
d)
173.15 K
54.
Which of the following is NOT a value for standard pressure?
a)
101.3 kPa
b)
760 mm Hg
c)
1 atm
d)
1 torr
55.

If the pressure in a balloon remains constant what happens to the balloon's volume as the temperature of the air increases?

a)

the volume decreases and the balloon shrivels up or shrinks

b)

the volume increases and the balloon expands

c)

the volume stays the same and the balloon stays the same size

56.

At constant volume which graph shows the relationship between the pressure and temperature?

a)
b)
c)
d)
57.

A student inflates a balloon with helium then places it in the freezer. The student should expect

a)

the balloon's volume to increase

b)

the balloon's volume to decrease

c)

the balloon's moles to increase

d)

the balloon's moles to decrease

58.

A gas sample is held at constant pressure. The gas occupies 3.62 L of volume when the temperature is 21.6°C. Determine the temperature at which the volume of the gas is 3.42 L.

a)

312K

b)

278K

c)

20.4K

d)

295K

e)

552K

59.

A balloon has a volume of 2.32 liters at 24.0°C. The balloon is heated to 48.0°C. Calculate the new volume of the balloon.

a)

2.32L

b)

2.51L

c)

2.15L

d)

4.64L

e)

1.16L

60.

Body temperature is about 309 K. On a cold day, what volume of air at 276 K must a person with a lung capacity of 2.2L breathe in to fill the lungs?

a)

2.46L

b)

1.97

c)

2.08

d)

3.93

61.
Neon occupies a volume of 2.80 L at -35°C. What volume will it occupy at 43°C?
a)
3.44 L
b)
4.1 L
c)
2.65 L
d)
3.7 L
62.
Which of the following is equivalent to 1,068kPa?
a)
7,516.45 mmHg
b)
7,814.2 torr
c)
155.0 psi
d)
11.3 atm
63.
A 135 mL sample of argon had its pressure changed from 75.0 kPa to 121 kPa. What is its new volume?
a)
83.7 mL
b)
98.3 mL
c)
76.4 mL
d)
5 mL
64.
If 6L of gas at 293K is compressed to 4L, what is the new temperature? 
a)
195K
b)
439.5K
c)
0.082K
d)
12.2K
65.

Which will travel faster: oxygen gas or helium gas?

a)

O2

b)

He

66.

Usuing Graham's Law: If you had 2 identical balloons filled with Nitrogen gas (N2) and Helium gas (He), which balloon will deflate the fastest?

a)

Helium balloon

b)

nitrogen balloon

c)

they will both deflate at the same rate

d)

the balloons will both pop

67.
Which of the following would have a faster rate of effusion: 15g of Kr or 15g of N2?
a)
Kyrpton
b)
Nitrogen
c)
Both would have the same rate of effusion
68.
Which of the following would have the slower rate of effusion: 100 grams of O2 or 100 grams of Cl2?
a)
100 grams of O2 
b)
100 grams of Cl2
c)
O2 and Cl2 would have the same rate of effusion
69.

Identify the factor that determines rates of diffusion and effusion for different molecules at a given temperature.

a)

Size of the molecules

b)

Polarity of the molecules

c)

Temperature of the gas

d)

Molar mass of the gas

70.

Why would O2 effuse faster than CO2 if they are at the same conditions?

a)

because O2 has more kinetic energy

b)

because O2 has a smaller molar mass

c)

because O2 has a higher temperature

d)

they will effuse the same because the temperature is fixed

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