Temperature
Pressure
Phases of Matter
2 Variable IFE Tables
Multiple Variable IFE Tables
100
What does temperature measure about particles?
What does temperature measure about particles?
100
What does pressure measure about particles?
The force of collisions with an object/the inside of the container
100
What are two characteristics of a solid?
Slow moving particles, close together, definite shape
100
A gas at a volume of 237 mL is compressed to 198 mL. If the gas started at 570. mmHg what is the new pressure?
682 mmHg
100
If I initially have 4.0 L of a gas at a pressure of 1.1 atm, what will the volume be if I increase the pressure to 3.4 atm?
1.29 L
200
What causes expansion?
An increase in temperature
200
When volume decreases, pressure ___________.
Increases
200
How does a liquid differ from a solid (give three ways)?
Particles are free to move, particles take the shape of the container, particles are moving faster
200
A football in the locker room at 74 degrees Celsius is taken outside where it is 84 degrees Celsius. If the ball started out with a volume of 2.3 L, what is the final volume of the ball?
2.6 L
200
A toy balloon has an internal pressure of 1.05 atm and a volume of 5.0 L. If the temperature where the balloon is released is 20° C, what will happen to the volume when the balloon rises to an altitude where the pressure is 0.65 atm and the temperature is –15° C?
7.11 L
300
What property of matter makes a thermometer work?
Expansion and contraction
300
Give one of the standard pressures.
1 atm = 760 Torr = 760 mmHg = 101.3 kPa
300
Give one of the points of the Kinetic Molecular Theory.
Individual particles are considered very small points in space and do not have volume.
The particles of an ideal gas exert no attractive forces on each other or on their surroundings.
Gas particles are in a constant state of random motion and move in straight lines until they collide with another body.
The collisions exhibited by gas particles are completely elastic; when two molecules collide, total kinetic energy is conserved.
The average kinetic energy of gas molecules is directly related to temperature; this means that all molecular motion ceases if the temperature is reduced to absolute zero.
300
A sample of gas is filled with 132 puffs of particles. 58 puffs are let out. How would the pressure change if it started at 792 mmHg?
444 mmHg
300
A commercial airliner has an internal pressure of 1.00 atm and temperature of 25° C at takeoff. If the temperature of the airliner drops to 17° C during the flight, what is the new cabin pressure?
.973 atm
400
What is standard temperature?
273 K
400
What causes the liquid in a straw to go up?
The air pressure outside the straw
400
How does evaporation take place?
Particles on the surface are bumped out by others
400
A gas at -73 degrees Celsius and 198 psi is heated until the temperature is 23 degrees Celsius. What is the final pressure?
293 psi
400
A Los Angeles class nuclear submarine has an internal volume of eleven million liters at a pressure of 1.250 atm. If a crewman were to open one of the hatches to the outside ocean while it was underwater (pressure = 15.75 atm), what be would the new volume of the air inside the
submarine?
873,000 L
500
What happens at 0 K?
All particle movement stops
500
If the atmospheric pressure increases, how would this affect a barometer?
The air would push harder on the outside of the barometer and cause the liquid to go further up the tube.
500
Does evaporation happen in your freezer?
Yes
500
A gas at 297 K was originally at a temperature of 323 K. If the final pressure is 2.4 atm, what was the initial pressure?
2.2 atm
500
People who are angry sometimes say that they feel as if they’ll explode. If a calm person with a lung capacity of 3.5 liters and a body temperature of 36° C gets angry, what will the volume of the person’s lungs be if their temperature rises to 39° C. Based on this, do you think it’s likely they will explode?
New volume = 3.53 L
It seems unlikely that this small increase in volume would cause them to explode.