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WorksheetsMod Cem: Unit 2 - Particles in Motion Test Review (in class)
Total questions: 22
Worksheet time: 6hrs 30mins
When you heat a gas, its thermal energy
increases
decreases
remains the same
varies with pressure
Gases exert pressure on their containers due to
collisions between particles
collisions between particles and the container walls
the space between molecules
the type of manometer used
If the column of mercury in a barometer or manometer is increasing, what can you say about the air pressure around it?
going up
going down
staying constant
not enough information to answer
Which relationship below is represented by the graph shown?
P-n
P-V
P-T
P-P
Which relationship below is represented by the graph shown (pick all that apply)?
P-n
P-T
P-V
P-P
Which statement is true regarding the relationships represented by the graph shown?
Line B shows the relationship between volume and temperature
Line A shows the relationship between pressure and temperature (in Kelvin)
Line C shows the relationship between pressure and volume
Line A shows the relationship between pressure and temperature (in Celsius)
Why does the mercury in a thermometer travel upwards in warmer water?
When particles gain energy they expand and move farther away from one another.
When particles gain energy they expand and move closer to one another.
When particles gain energy they contract and move farther away from one another.
When particles gain energy they contract and move closer to one another.
The cube at left shows a gas at 45oC (318 K). Which of the labelled cubes best represents the same gas at 20oC (293 K)?
A
B
C
D
How do I know the gas particles in the balloon at right have more energy than those in the cylinder in the middle?
Lines are longer coming off the particles in the balloon at right
Lines are shorter coming off the particles in the balloon at right
Lines are longer coming off the particles in the cylinder in the middle
There are fewer particles in the balloon at right
What would happen to the pressure of this gas if the number of particles was cut in half?
pressure would increase
pressure would decrease
nothing would happen
it would depend on the volume of the container
True or False: Pressure increase when temperature increases because the added energy causes the particles to move faster, thus causing more collisions with the container the gas is in.
True
False
You have a container of oxygen with a volume of 50 mL at a temperature of 293 K. What is the new volume if the temperature goes up to 297 K?
50.7
49.3
60
41.7
You have a gas exerting 14 psi of force at 303 K. What temperature is the gas at if the pressure has increased to 30 psi?
649K
141K
303K
337K
A gas is put into a 4.5L container at 1.78atm. What is the new pressure if the gas is transferred into a container with a volume of 6.0L?
1.3atm
2.4atm
1.78atm
0.75atm
A sample of oxygen occupies 600 mL at 288 K and 800 mmHg. what is the volume of gas at STP (1 atm, 760 mm Hg, 273 K)?
596.5mL
668.7mL
538.3mL
603.5mL
The diagram shows a manometer connected to a flash. The mercury levels are measured in mm. If the pressure in the room is 770 mmHg, what is the pressure inside the flask?
520 mmHg
1020 mmHg
150 mmHg
400 mmHg
Which of the following is NOT part of the Kinetic Molecular Theory (ie. which is false)?
matter is composed of tiny particles in endless, random motion
in solids, particles are moving, but are tightly packed into an orderly arrangement
collisions between particles are considered elastic
the speed of a particle is inversely proportional to the amount of energy it has
A container has a pressure of 15 atm. How many psi is this?
15 psi
220.5 psi
1.02 psi
11400 psi
Which of the following is a characteristic we use to describe gases? Choose ALL that apply.
pressure
temperature
volume
number of particles
Which of the following samples of air have particles that are moving the slowest?
200oC
0oC
50oC
101oC
Which of the following will make the pressure of a container go up? Choose ALL that apply.
Decrease the volume
Decrease the temperature
Decrease the number of particles
Increase the temperature
What things are changing between the left and right box? Choose ALL that apply.
pressure
volume
temperature
number of particles
