Gas Law Review - Mounds View School Websites

```Gas Law
Review
Name the Law!
1. Pressure and Temperature are directly related with
the number of particles and volume held constant.
Gay-Lussac’s Law
2. Pressure and Volume are indirectly related with the
number of particles and temperature held constant
Boyle’s Law
3. Temperature and Volume are directly related with
the number of particles and pressure held constant.
Charles’ Law
Draw and Solve!
4. The volume of the lungs is measured by the volume of air inhaled or
exhaled. If the volume of the lungs is 2.400 L during exhalation and
the pressure is 101.70 kPa, and the pressure during inhalation is
101.01 kPa, what is the volume of the lungs during inhalation?
What law is being addressed in this problem?
BOYLE’S!
What will happen to the volume of the lungs?
Increase!
P1V1  P2V2
101.70 kPa 2.400 L  101.01 kPaV2
101.70 kPa 2.400 L
 V2
101.01 kPa
Solve!
5. What volume does 4.24 g of Nitrogen gas
occupy at 58.2 degree Celsius and 2,040 kPa?
What gas law is this?
Ideal Gas Law
PV = nRT
58.2 C  273 331.2 K
4.24 g N 2 
1 m ol N 2
 0.15 m ol N 2
28 g
(2,040 kPa)V  (0.15 mol)(8.314 J / mol K )(331.2 K )
Draw and Solve!
6. An inflated balloon occupies a volume of 3.20
L at 25.0°C. What volume will the balloon
occupy at 50.0°C if the pressure is constant?
What law is this?
Charles’ Law
V1 V2

T1 T2
3.20 L
V2

298 K 323 K
Draw and Solve!
7. Suppose a used aerosol can contains a gas at
101.3 kPa and 25.0°C. If this can is heated in a
fire to 500. 0°C, what will be the pressure of
the gas inside the can?
What law is this?
Gay-Lussac’s Law
P1 P2

T1 T2
101.3 kPa
P2

298 K
773 K
25.0°C + 273 = 298K
500.0°C + 273 = 773K
```