behavior of gases review. true or false: one mole of any gas, regardless of size, temperature, or...
TRANSCRIPT
Behavior of Gases
Review
True or False: One mole of any gas, regardless of size, temperature, or pressure occupies 22.4L?
True
False
0%0%
1. True 2. False
True or False: STP is at 0 Kelvin and 760mmHg.
True
False
0%0%
1. True2. False
Which of the following is not a main idea of the kinetic molecular theory of gases?
The avera
ge ki...
Gase
s consis
t ...
STP is
at 0o C...
The volume of ..
.
0% 0%0%0%
1. The average kinetic energy of gas particles is proportional to the Kelvin temperature.
2. Gases consist of molecules moving at extremely high velocities.
3. STP is at 0o C and 1atm.4. The volume of the individual gas
molecules is huge compared to the volume that the gas occupies.
If the total atmospheric pressure is 760mmHg, then all of the components of the air (nitrogen, oxygen, …) have a pressure of
760mmHg.
True
False
0%0%
1. True 2. False
Why is a gas easier to compress than a liquid or a solid?
Its volume in
crease
s mor..
.
Its volume in
crease
s mo..
The space
between gas p
...
The volume of a
gas...
0% 0%0%0%
1. Its volume increases more under pressure than an equal volume of liquid does.
2. Its volume increases more under pressure than an equal volume of solid does.
3. The space between gas particles is much less than the space between liquid or solid particles.
4. The volume of a gas’s particles is small compared to the overall volume of the gas.
How does the gas propellant move when an aerosol can is used?
from a re
gion of h
igh pr...
from a re
gion of h
igh pr...
from a re
gion of lo
w pre...
from a re
gion of lo
w pre...
0% 0%0%0%
1. from a region of high pressure to a region of lower pressure
2. from a region of high pressure to a region of equally high pressure
3. from a region of low pressure to a region of higher pressure
4. from a region of low pressure to a region of equally low pressure
If a balloon is squeezed, what happens to the pressure of the gas inside the balloon?
It incre
ases.
It sta
ys th
e same.
It decre
ases.
The pressu
re depends o
...
0% 0%0%0%
1. It increases.2. It stays the same.3. It decreases.4. The pressure
depends on the type of gas in the balloon.
As the temperature of the gas in a balloon decreases, which of the following occurs?
The volume of t
he ballo..
The avera
ge kinetic e
ner..
The gas p
ressu
re in
side ...
all of t
he above
0% 0%0%0%
1. The volume of the balloon increases.
2. The average kinetic energy of the gas decreases.
3. The gas pressure inside the balloon increases.
4. all of the above
If 4 moles of gas are added to a container that already holds 1 mole of gas, how will the
pressure change inside the container?
The pressu
re w
ill be five...
The pressu
re w
ill double.
The pressu
re w
ill be fo
ur...
The pressu
re w
ill not c
h...
0% 0%0%0%
1. The pressure will be five times higher.
2. The pressure will double.
3. The pressure will be four times higher.
4. The pressure will not change.
Which of these changes would NOT cause an increase in the pressure of a contained gas?
The volume of t
he conta
...
More
of the ga
s is a
dded...
The tempera
ture
is incre
...
The avera
ge kinetic e
ner..
0% 0%0%0%
1. The volume of the container is increased.
2. More of the gas is added to the container.
3. The temperature is increased.
4. The average kinetic energy of the gas in increased.
When the Kelvin temperature of an enclosed gas doubles, the particles of the gas ____.
move fa
ster
strik
e the w
alls of t
he c...
decrease
in ave
rage
kine...
decrease
in vo
lume
0% 0%0%0%
1. move faster2. strike the walls of
the container with less force
3. decrease in average kinetic energy
4. decrease in volume
The volume of a gas is doubled while the temperature is held constant. How does the gas
pressure change?
It is
reduce
d by one half.
It does n
ot change.
It is
doubled.
It varie
s depending on t.
.
0% 0%0%0%
1. It is reduced by one half.
2. It does not change.3. It is doubled.4. It varies depending
on the type of gas.
In general, for a gas at a constant volume, ____.
the pre
ssure
of the ga
s is..
.
the volume of t
he gas is
...
the volume of t
he gas is
...
the pre
ssure
of the ga
s is..
.
0% 0%0%0%
1. the pressure of the gas is inversely proportional to its temperature in kelvins
2. the volume of the gas is inversely proportional to its temperature in kelvins
3. the volume of the gas is directly proportional to its temperature in kelvins
4. the pressure of the gas is directly proportional to its temperature in kelvins
What happens to the partial pressure of oxygen in a sample of air if the temperature is
increased?
It incre
ases.
It sta
ys th
e same.
It decre
ases.
The change
cannot b
e d...
0% 0%0%0%
1. It increases.2. It stays the same.3. It decreases.4. The change cannot
be determined.
If oxygen is removed from a sample of air as iron rusts, what happens to the total pressure of the
air?
It incre
ases.
It sta
ys th
e same.
It decre
ases.
The change
cannot b
e d...
0% 0%0%0%
1. It increases.2. It stays the same.3. It decreases.4. The change cannot
be determined.
If the volume of a container of air is reduced by one-half, what happens to the partial pressure
of oxygen within the container?
It is
reduce
d by one-half.
It does n
ot change.
It is
doubled.
It is
reduce
d by one-fourth
.
0% 0%0%0%
1. It is reduced by one-half.
2. It does not change.3. It is doubled.4. It is reduced by one-
fourth.