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Chem 1 Unit 10 States of Matter

Total questions: 53

Worksheet time: 34mins

Name
Class
Date
1.
How is a gas defined?
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
2.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
3.
Which form of matter does not take the shape of its container?
a)
liquid
b)
gas
c)
solid
d)
air
4.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
5.
What term describes a liquid changing to a solid?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
6.
Particles of a liquid
a)
are tightly packed together and stay in a fixed position.
b)
have no viscosity.
c)
decrease in volume with increasing temperature.
d)
are free to move around one another but still touch.
7.
Particles (molecules) in a ______________________ have more energy than the other states of matter.
a)
gas
b)
solid
c)
liquid
8.
a)
It remains the same.
b)
It changes greatly.
c)
It changes minimally.
d)
Unable to tell.
9.
The state of matter that has no definite size or shape is
a)
Solid
b)
Liquid
c)
Gas
10.
Which state of matter has the lowest compressibility?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
11.
When a gas changes directly to a solid, the process is known as what?
a)
Sublimation
b)
Condensation
c)
Deposition
d)
Evaporation
12.
From 30 degrees to 55 degrees, what state of matter is the substance?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
13.
The combination of pressure and temperature where all three states of matter will exist at the same time
a)
triple point
b)
temperature point
c)
pressure point
d)
the point of three states
14.
Fluid states are
a)
solid and gas
b)
liquid and gas
c)
solid and liquid
d)
solid, liquid and gas
15.
What state of matter is segment 5?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
16.
To boil, what must equal the atmospheric pressure?
a)
atmosphere
b)
kinetic energy
c)
vapor pressure
d)
temperature
17.
The Kelvin temperature scale is based on
a)
potential energy
b)
kinetic energy
c)
Kelvins
d)
water
18.
In a closed container, the molecules evaporating will eventually equal
a)
the molecules condensing
b)
the molecules in the liquid
c)
the molecules of air
d)
the molecules in equilibrium
19.
30 degrees Celcius would equal
a)
273 K
b)
243 K
c)
30 K
d)
303K
20.
A phase change from liquid to gas
a)
condensation
b)
vaporization
c)
sublimation
d)
deposition
21.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
22.

Which can occur at any temperature?

a)

Boiling

b)

Evaporation

c)

Both

23.

While water is boiling, the temperature stays at 100 C, no matter how much it is heating. Where is the heat going?

a)

Directly into the surroundings

b)

Back into the heat source

c)

Used to change the liquid to gas

d)

Used to change the solid to liquid

24.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.
25.

Which substance has the weakest intermolecular forces?

a)

Substance A, boiling point of 75 °C

b)

Substance B, boiling point of 105 °C

c)

Substance C, boiling point of 25 °C

d)

Substance d, boiling point of 45 °C

26.

The weaker the intermolecular forces of a substance the _____________ the boiling point

a)

higher

b)

lower

27.

A real gas differs from an ideal gas because the molecules of a real gas have

a)

A) Some volume and no attraction for each other

b)

B) Some volume and some attraction for each other

c)

C) No volume and no attraction for each other

d)

D) No volume and come attraction for each other

28.

Which statement describes the particles of an ideal gas based on the kinetic molecular theory?

a)

A) The gas particles are relatively far apart and have negligible volume.

b)

B) The gas particles are in constant, nonlinear motion.

c)

C) The gas particles have attractive forces between them.

d)

D) The gas particles have collisions without transferring energy.

29.

According to the kinetic molecular theory, the molecules of an ideal gas

a)

A) have a strong attraction for each other

b)

B) have significant volume

c)

C) move in random, constant, straight-line motion

d)

D) are closely packed in a regular repeating pattern

30.

According to kinetic molecular theory, collisions between gas particles in a sample of an ideal gas

a)

A) increase the energy content of the gas sample

b)

B) produce strong attractive forces between the gas particles

c)

C) result in a net loss of energy by the gas sample

d)

D) transfer energy between the gas particles

31.

The concept of an ideal gas is used to explain

a)

A) the mass of a gas sample

b)

B) the behavior of a gas sample

c)

C) why some gases are monatomic

d)

D) why some gases are diatomic

32.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
33.

What is pressure?

a)

The amount of force exerted on a surface

b)

The surface area of an object

c)

The weight of an object

34.
When the atmospheric pressure equals the equilibrium vapor pressure ___ occurs.
a)
freezing
b)
melting
c)
boiling
d)
sublimation
35.
When you increase your altitude, the air pressure 
a)
increases
b)
decreases
c)
stays the same
36.

Ice floats on water because

a)

adhesion

b)

cohesion

c)

water expands when it freezes

d)

water shrinks when it freezes

37.

When salt is dissolved in water, water is the

a)

solvent

b)

solute

c)

solution

d)

reactant

38.

Water is "sticky" because...

a)

of cohesion.

b)

of adhesion.

c)

of the attraction between the positively charged hydrogen atoms and the negatively charged oxygen atom.

d)

of capillary action.

39.

Why is water called the universal solvent?

a)

It is polar.

b)

It exist in the universe.

c)

It dissolves many materials.

d)

It has oxygen and hydrogen.

40.
Why does water have a high specific heat index?
a)
It requires a great amount of energy for water to become hot. 
b)
It takes water little energy to get hot.
c)
Water changes temperature very easily. 
d)
Water warms up fast when heated by the sun. 
41.
When water molecules stick together and create a trampoline like surface, it is called ___________________. 
a)
surface tension
b)
capillary action
c)
adhesion
d)
cohesion
42.

A paperclip floating on water is an example of what property of water?

a)

capillary action

b)

surface tension

c)

universal solvent

d)

specific heat index

43.

Water’s unique properties arise because of its ability to form strong:

a)

covalen bonds

b)

hydrogen bonds

c)

dipole bonds

d)

ionic bonds

44.

Which of the following is not a property of water?

a)

Hydrogen bonds exist only in the solid state.

b)

It can dissolve ionic and polar molecules.

c)

It has a high surface tension.

d)

The solid state is less dense than the liquid state.

45.
Water exists as a _____________ at 700 mmHg and 50 °C.
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
46.
What phase change(s) may occur at pressures below 4.58 mmHg?
a)
sublimation/deposition
b)
melting/freezing
c)
all phase changes are possible at these pressures
d)
vaporization/condensation
47.
The pressure is increased on a sample of water at 0 °C from 0 mmHg to 800 mmHg.  In order, what changes occur?
a)
deposition, melting
b)
sublimation, melting
c)
condensation, freezing
d)
deposition, freezing
48.
At 10 atm, dry ice is heated from -100 °C to 30 °C.  What changes occur?
a)
freezing, then condensation
b)
melting only
c)
sublimation only
d)
melting, then boiling
49.
What is the normal melting point of CO2?
a)
-78.5 °C
b)
-56.7 °C
c)
31 °C
d)
It doesn't have a normal melting point.
50.
What is point A?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
51.
What is the normal melting point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
52.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
53.
Which statement is true for carbon dioxide at -60 °C?
a)
All three phases are possible.
b)
It can exist as a solid or a gas, depending on pressure.
c)
It is a solid.
d)
With enough pressure it can be melted.

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