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Gas Laws 1.0 Review

Total questions: 32

Worksheet time: 47mins

Name
Class
Date
1.
Which is a quality that only gasses display
a)
Spread out to fill all available space
b)
Take the shape of their container
c)
Can't be compressed
d)
All of these
2.
Which of the following has the lowest density?
a)
Gasses
b)
Solids
c)
Liquids
d)
All mater is the same density
3.
How do you convert Celsius to Kelvin?
a)
Add 273
b)
Subtract 273
c)
You can't convert those
d)
They are the same thing
4.
What is the device that measures atmospheric pressure?
a)
Aerometer
b)
Annemeter
c)
Barometer
d)
Humidity Detector
5.
If you increase the pressure of a constant volume of gas, what will happen to the temperature?
a)
Increase
b)
Decrease
c)
Stay the same
d)
It will Blow Up
6.
What will happen to the volume of a gas under constant temperature if the pressure increases?
a)
Increase
b)
Decrease
c)
Nothing
d)
Explosion!
7.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
8.
How are pressure and volume related?
a)
Directly
b)
Indirectly
c)
They aren't related
9.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
10.
A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?
a)
57.5⁰C
b)
57.5 K
c)
330.5 K
d)
330.5⁰C
11.
If 200 mL of a gas at 27°C is cooled to -33°C at a constant pressure, the volume will be
a)
250 mL
b)
204 mL
c)
196 mL
d)
160 mL
12.
At 249 kPa sample of nitrogen is heated from 86 degrees Celsius to 107 degrees Celsius.  What pressure will the sample have at the higher temperature?
a)
264 kPa
b)
266 kPa
c)
842 kPa
d)
824 kPa
13.
A gas occupies 12.3 liters at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg?
a)
18.5 L
b)
8.2 L
c)
195 L
14.

If you were to triple the pressure of a gas that was held at a constant temperature, what would happen to the volume?

a)

It would triple

b)

It would decrease by 1/3

c)

It would remain constant

d)

None of the above

15.

A quantity of gas has a volume of 250.0 L at 17.0°C and 3.00 atm of pressure. To what volume must the gas be increased for the gas to be under STP conditions?

a)

78.4 L

b)

88.5 L

c)

250 L

d)

706 L

16.

What are standard temperature and pressure (STP) conditions for gases?

a)

0ºC and 1 atm

b)

0ºC and 1 mm Hg

c)

0 K and 1 atm

d)

0 K and 760 mm Hg

17.

The initial pressure of a gas is 457 mm Hg, the final volume is 750 mL with a final pressure of 650 mm Hg. What is the initial volume of the gas?

a)

750 mL

b)

920 mL

c)

1100 mL

d)

1700 mL

18.

Given an atmospheric pressure of 1.85 atm, what would be the pressure in mmHg?

a)

1406 mmHg

b)

0.00243 mmHg

c)

187 mmHg

d)

27.2 mmHg

19.

What pressure in mmHg is equal to 1.4 atm?

a)

1000 mmHg

b)

1100 mmHg

c)

1200 mmHg

d)

1400 mmHg

20.

The kinetic molecular theory says that gases consist of large numbers of tiny particles that are very close together.

a)

True

b)

False

21.

When calculating gas law problems what units must volume, pressure, and temperature be in?

a)

Liters

b)

°C

c)

Kelvin

d)

Pascals

e)

atmospheres

22.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
23.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
24.
Using Combined Gas Law, if the pressure of a gas starts out at 200kPa and increases to 600kPa, what would the initial temperature be if it ended up at 300K?
a)
50K
b)
200K
c)
400K
d)
100K
25.
The energy of an object as it is in motion is defined as
a)
Kinetic Theory
b)
Kinetic energy
c)
Potential energy
d)
Electric energy
26.
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.
27.
Which is a quality that only gasses display
a)
Spread out to fill all available space
b)
Take the shape of their container
c)
Can't be compressed
d)
All of these
28.

Hydrogen and oxygen react under a specific set of conditions to produce water according to the follwoing: 2H2(g) + O2(g) --> 2H2O(g). How many moles of hydrogen would be required to produce 5.0 mol of water?

a)

5.0 mol H2

b)

4.0 mol H2

c)

7.0 mol H

d)

5.0 mol of H

29.

What volume does 3.2 moles of Fluorine gas occupy at STP?

a)

About 72 L

b)

About 0.09 L

c)

About 0.014 L

d)

About 111 L

30.

A gas at STP occupies a volume of 3.4 L, If the pressure is increased to 1.2 atm and the Temperature is increased to 300K, what is the new volume?

a)

3.1 L

b)

4.98 L

c)

20,073 L

d)

0.32 L

31.

About how much space does a gas occupy at STP?

a)
b)
c)
d)
32.

Under which variables would a gas be LEAST ideal?

a)

High pressure and High temperature

b)

High pressure and Low temperature

c)

Low pressure and High temperature

d)

Low pressure and Low temperature

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