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Gas laws =+

Total questions: 55

Worksheet time: 2hrs 56mins

Name
Class
Date
1.
Gas laws involve what three variables?
a)

Solid Liquid Gas 

b)

Speed Velocity Acceleration 

c)

Elements Compounds Mixtures 

d)

Pressure Temperature Volume 

2.

Gas pressure is caused by ______.

a)

gravity.

b)

gas molecules colliding with each other.

c)

gas molecules colliding with surfaces of the container.

d)

gas molecules reacting with each other.

3.
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

4.
True or False: Gases can be compressed. 
a)

True

b)

False

5.

What will happen to the volume of a balloon if you warm it up into over hot water?

a)

Volume will increase

b)

Volume will decrease

c)

Volume will not change

6.

If the temperature of a gas decreases, the pressure of the gas will...

a)

Decrease

b)

Increase

c)

Not change

d)

Cannot be determined

7.

Which container has higher pressure?

a)

Container A

b)

Container B

c)

Container A and B have the same pressure.

8.
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.

9.

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

10.

When the temperature of a gas increases the particles...

a)

speed up and move closer

b)

speed up and move farther apart

c)

slow down and move closer together

d)

slow down and move farther apart

11.

Pressure decreases when..

a)

Temperature increases.

b)

Temperature decreases.

c)

Number of particles increase.

d)

Volume decreases.

12.

What will happen to the pressure inside a balloon if you squeeze it and the volume (size) of the balloon decreases?

a)

Pressure will increase

b)

Pressure will decrease

c)

Pressure will not change

13.

In an "inverse relationship", such as Boyle's Law, when one variable shows an increase the other variable...

a)

increases as well

b)

remains constant

c)

shows a flat line on a graph

d)

decreases

14.

In a "direct relationship", such as Charles' Law, when one variable shows an increase the other variable...

a)

increases as well

b)

remains constant

c)

shows a flat line on a graph

d)

decreases

15.

When volume increases, pressure must...

a)

Increase

b)

Decrease

16.

What will happen to the size of a balloon if you take it outside in cold temperature?

a)

Volume will increase

b)

Volume will decrease

c)

Volume will not change

17.

If you increase the temperature of a gas trapped in a non-flexible container, the pressure will...

a)

stay the same

b)

increase

c)

decrease

d)

cause diffusion

18.
When the temperature of matter increases the particles...
a)

speed up and move closer

b)

speed up and move farther apart

c)

slow down and move closer together

d)

slow down and move farther apart

19.

When pressure increases then the volume must...

a)

Increase

b)

decrease

20.

What type of relationship do pressure and volume have?

a)

direct

b)

inverse

c)

no relationship

d)

I don't know

21.

If you lower the pressure of a metal container, what will happen to its temperature?

a)

Increase

b)

Decrease

c)

Stay the Same

22.
What does Boyle's law relate to?
a)
Temperature and Volume
b)
Volume and Pressure
c)
Temperature and Pressure
23.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
24.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
25.
When Pressure increases then the Volume must...
a)
Increase
b)
decrease
26.
A sample of gas with a volume of 30.0 mL at 25.0oC is heated to 50.0oC.  What is the new volume of the gas?
a)
P1V1 = P2V2
b)
P1/T1 + P2/T2
c)
PV = nRT
d)
V1/T1 = V2/T2
27.
If the pressure exerted by a gas at 298 K in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?
a)
P1/T1 = P2/T2
b)
PV = nRT
c)
V1/n1 = V2/n2
d)
P1V1 = P2V2
28.
A gas fills a balloon at a temperature of 27 oC and 1 atm of pressure. What will the pressure of the balloon be if the gas is heated to 127 oC?
a)
P1V1 = P2V2
b)
PV = nRT
c)
P1/T1 = P2/T2
d)
V1/T1 = V2/T2
29.

A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 0.65 atm. What is the new volume?

a)

2.1 L

b)

5.0 L

c)

8.2 L

d)

3.9 L

30.

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

31.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
32.
Charles' Law States...
a)
As Pressure goes up volume goes down
b)
As Pressure goes up temperature goes up
c)
As Volume goes up temperature goes up 
d)
As Pressure goes down volume goes down 
33.
When a basketball is left outside in the cold it goes flat because the volume of air inside the ball has been reduced. What  gas law does this represent?
a)
Boyle's Law
b)
Charles's Law
34.
You have a gas that has a pressure of 2 ATM and a volume of 10L.  What would be the new volume if the pressure was changed to 1 ATM?
a)
5 L
b)
20 L
c)
It would stay at 10L
d)
1 L
35.
What is 50 °C in Kelvin?
a)
223
b)
323
c)
100
d)
50
36.
What will happen to the volume of a gas under constant temperature if the pressure increases?
a)
Increase
b)
Decrease
c)
Nothing
d)
Explosion!
37.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
38.
A 220.0 mL sample of helium gas is in a cylinder at 105 kPa and 275 K. The piston is pushed in until the sample has a new temperature of 310 K and new pressure of 150 kPa. What is the new volume of the gas? 
a)
P1V1/T1 = P2V2/T2
b)
PV = nRT
c)
P1V1 = P2V2
d)
Pt = P1 + P2 + P3 + ...
39.
A balloon of Argon gas has a volume of 150. mL when its pressure is 0.647 atm. What will the pressure of the gas be at a volume of 98.3 mL if the temperature remains constant?
a)
0.987 atm
b)
1.53 atm
c)
2.36 atm
d)
97.1 atm
40.
A balloon of helium gas occupies a volume of 1 L at 32°C. What volume will the gas occupy if we put it in a ice bath at a temperature of 0°C, assuming pressure remains constant? HINT: Temperature units MUST be in Kelvin!
a)
0 L
b)
1.11 L
c)
895 mL
d)
632 mL
41.
At STP, 1 mole of hydrogen gas (or ANY other gas for that matter) has a volume of 22.4 L. What would be the volume of a balloon if we used 0.15 moles hydrogen gas to fill it up?
a)
0.0067 L
b)
149 L
c)
0.0067 mL
d)
3.36 L
42.
The gas in an aerosol can exerts a pressure of 3.00 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)
3.76 atm
b)
2.40 atm
c)
12 atm
d)
0.75 atm
43.
For his chemistry demonstration, Davy filled up a 5 L balloon with nitrous oxide gas at 25°C and an atmospheric pressure of 1.08 atm. For easier transportation he stored it in a pressurized container at 1.5 atm and temperature of 5°C. What volume will the balloon have?
a)
9.77 L
b)
3.36 L
c)
7.56 L
d)
4.35 L
44.
What is the temperature of natural gas in an oil pipeline if we know there are 0.91 moles of the gas in the pipeline and the volume of the pipeline is 5.43 L and the gas is exerting a pressure of 4.21 atm?
R = 0.082  (L x atm) / (K x mol)
a)
306 °C
b)
579.4 °C
c)
33.4 °C
d)
- 19.3 °C
45.
How do you convert between Celsius and Kelvin?
a)
add 273
b)
add 260
c)
add 293
d)
change the C to a K
46.
Choose the correct equation for this problem:
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be? 
a)
P1V1=P2V2
b)
PV=nRT
c)
V1T1=V2T2
d)
V1T2=V2T1
47.
Calculate:
I have 130 liters of gas in a piston at a temperature of 2500 C.  If I cool the gas until the volume decreases to 85 liters, what will temperature of the gas be? 
a)
163 K
b)
342 K
c)
800 K
48.
At what temperature, will particles be moving the fastest?
a)
0K
b)
25 K
c)
50 K
d)
150 K
49.

A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 0.65 atm. What is the new volume?

a)

2.1 L

b)

5.0 L

c)

8.2 L

d)

3.9 L

50.

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

51.

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)

0.9 atm

b)

2.1 atm

c)

1.6 atm

d)

3.4 atm

52.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
53.
Charles' Law States...
a)
As Pressure goes up volume goes down
b)
As Pressure goes up temperature goes up
c)
As Volume goes up temperature goes up 
d)
As Pressure goes down volume goes down 
54.

Absolute zero is

a)

0 K

b)

where there is no molecular movement

c)

the coldest temperature possible

d)

all of these

55.

A sample of gas with a volume of 30.0 mL at 25.0oC is heated to 50.0oC. What is the new volume of the gas?

a)

60.0 mL

b)

15.0 mL

c)

27.5 mL

d)

32.5 mL

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