Chem.Review.Qualitative-Gas-Laws

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

When a piston compresses in a chamber the volume of the gas inside decreases. What happens to the pressure and which gas law is this representing?

• The pressure decreases - Charles'

• The pressure increases - Charles'

• The pressure decreases - Boyle's

• The pressure increases - Boyle's

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

If a balloon is cooled what will happen to the volume?

• Volume will increase
• Volume will decrease
• Volume will not change
• Balloon freezes to death

Which of the following would increase the (gas) pressure of a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

Boyle's law :  The pressure and volume of a gas show a _____ relationship. 

• No relationship 
• Direct 
• Inverse 
• Equal

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase
• Decrease
• Nothing
• Explosion!

Pressure is

• defined as the mass that an object exerts when at rest.

• not a measurable in gases.

• defined as the number of moles of substance divided by the mass of the substance.

• created by the force of the gas particles impacting the walls of the container.

The following graph shows ____ relationship. 

• Direct
• Inverse

Boyle's law :  The pressure and volume of a gas show a _____ relationship. 

• Inverse 
• Direct