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Worksheets

Gases

Total questions: 27

Worksheet time: 26mins

Name
Class
Date
1.
Describe the substance between letters D and E. 
a)
Gas
b)
Liquid
c)
Melting
d)
Evaporating
2.

The melting point of the sample is

a)

-60 ºC

b)

-100 ºC

c)

60 ºC

d)

100 ºC

3.

Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?

a)

20°C

b)

50°C

c)

110°C

d)

170°C

4.

Given the heating curve for water, during which line segment could I find water in both the solid and liquid phase at the same time?

a)

AB

b)

BC

c)

CD

d)

DE

e)

EF

5.

This curve indicates what about the heat energy?

a)

Heat energy is being added or absorbed

b)

Heat energy is being released

6.

In which region(s) of the graph would the substance be melting?

a)

No melting occurs on this graph

b)

Region C-E

c)

Region E-G

d)

Region G-I

e)

Region I-K

7.

What is the freezing point of the substance?

a)

0oC

b)

60oC

c)

120oC

d)

180oC

8.
5. What is it called when a solid turns directly into a gas?
a)
Sublimation
b)
Condensation
c)
Liquid
9.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

10.

What letter on the diagram represents a gas?

a)

A

b)

B

c)

C

d)

D

11.

What letter on the diagram represents a liquid?

a)

A

b)

B

c)

C

d)

D

12.

What letter on the diagram represents a solid?

a)

A

b)

B

c)

C

d)

D

13.

What letter on the diagram represents the triple point?

a)

A

b)

B

c)

C

d)

D

14.

What is the melting point of this substance at 1 ATM of pressure?

a)

40

b)

60

c)

100

d)

110

15.

What is the boiling point of this substance at 1 ATM of pressure?

a)

40

b)

60

c)

100

d)

110

16.

What would the state of this substance be at 0.5 ATM of pressure at a 100 degrees Celsius?

a)

Solid

b)

Liquid

c)

Gas

d)

Michigan

17.

What would the state of this substance be at 1 ATM of pressure at a 80 degrees Celsius?

a)

Solid

b)

Liquid

c)

Gas

d)

Michigan

18.
The faster molecules move, 
a)
the higher the temperature
b)
the less temperature
c)
the same temperature
d)
I don't know
19.
Which of the following terms identifies the change from a liquid to gas?
a)
Vaporization
b)
Condensation
c)
Deposition
d)
Sublimation
20.
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
21.
How do gas molecules move? 
a)
in an orderly fashion 
b)
constantly and randomly
c)
in straight line paths
d)
in a circular motion
22.

What type of relationship does temperature and volume have?

a)
Inverse
b)
Direct
23.
When Pressure increases then the Volume must...
a)
Increase
b)
decrease
24.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
25.
What type of relationship to pressure and volume have?
a)
direct
b)
inverse
c)
no relationship
26.
Which container will have a lower pressure?
a)
left
b)
right
c)
they both have the same pressure
27.
What causes pressure?
a)
The walls of the container
b)
The vacuum in the container
c)
The collisions of the particles
d)
Atmospheric pressure acting on the outside walls