Gas Laws

Gas Laws

Simple gas laws: Boyle's law and Charle's law

Boyle's law

As the volume of a gas sample is decreased, gas molecules collide with surrounding surfaces more frequently, resulting in greater pressure 

Multiple Choice

What is the relation between Pressure and volume

• Inversely proportional

• Directly proportional

Pressure Vs Volume

When pressure increases the volume decreases

Multiple Choice

A woman has an initial lung volume of 2.75 L, which is filled with air at an atmospheric pressure of 1.02 atm. If she increases her lung volume to 3.25 L without inhaling any additional air, what is the pressure in her lungs?

• 0.863 atm

• 1.2 atm

• 8.76 atm

• 1 atm

Pressure

For every 10 m of depth, a diver experiences approximately one additional atmosphere of pressure due to the weight of the surrounding water. 

Multiple Select

During Scuba diving as you swim up towards the surface, what happens to the pressure and what should one do?

• pressure increases, so keep breathing in

• pressure decreases, so keep breathing in

• pressure decreases, so keep breathing out

• pressure increases, so keep breathing out