Variable Meanings
Vocabulary
Missing Properties
Concepts
Conversion of Units
100
V (State the unit that is associated with V as well)
Volume L (liters)
100
What is the Ideal Gas Law?
PV = nRT
100
How many moles of gas does it take to occupy 120. liters at a pressure of 2.30 atmospheres and a temperature of 340. K?
9.89 moles
100
When the temperature of a gas is increased, will the volume increase or decrease?
Increase
100
Convert 2000. Torrs to atm.
2.632 atm
200
n
Number of moles
200
What is the universal constant R?
.08206 L atm/mol K
200
If I have a 50.0 liter container that holds 45.0 moles of gas at a temperature of 200° C, what is the pressure inside the container? (Solve in atm)
34.9 atm
200
When the amount of gas (n) is increased, what happens to the volume?
Increases
200
Convert 3.4 x 10-4atm to torrs.
0.26 torrs
300
T (State the unit that is associated with T as well)
Temperature (Kelvins)
300
What is the name of the law that describes the relationship shown in the following equation?
P1 x V1 = P2 x V2
Boyle's Law
300
How many moles of gas are in a 30.00 liter scuba canister if the temperature of the canister is 300.0 K and the pressure is 200.0 atmospheres?
243.7 moles
300
When the pressure of a gas is decreased, what happens to the temperature?
Decreases
300
Convert 3.4 x 10-4atm to Pa.
35 Pa
400
R
Universal Gas Constant
400
What is STP? What conditions are required for STP?
Standard temperature and pressure
273 K and 1 atm
400
I have a balloon that can hold 100.0 liters of air. If I blow up this balloon with 3.000 moles of oxygen gas at a pressure of 1.000 atmosphere, what is the temperature of the balloon?
406.2 K
400
Which will move faster: a heavy molecule or a light molecule?
light molecule
400
Convert 3.48 kPa to atm.
0.0343 atm
500
P
Name three of the units associated with P as well.
Pressure
atm, Psi, Pa, Torr, mmHg, kPa
500
Describe the relationship between variables that are directly proportional and variables that are inversely proportional. Sketch a graph of what each relationship would look like.
Directly proportional: as one variable increases, the other increases too
Inversely proportional: as one variable increases, the other decreases
500
What pressure, in atm, does a 2.45 mole gas in a 207 mL container with a temperature of 20 oC exert?
284.7 atm
500
When a gas is compressed (when the volume goes down), what is happening to the pressure inside its container?
Increases
500
The air pressure outside a cruising jet liner is approximately 2.30 x 104 Pa. What is this pressure in atmospheres?
0.203 atm