Gas Laws

If the temperature of a gas increase, the pressure...

• Decreases
• Increases
• Does not change

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

• Volume will increase
• Volume will decrease
• Volume will not change

Which container will have lower pressure?

• left
• right
• they both have the same pressure

Which of the following is NOT a value for standard pressure?

• 101.3 kPa
• 760 mm Hg
• 1 atm
• 1 torr

What describes the motion of a Gas Molecule?

• Molecules are far apart

• Move in constant, random motion

• It will travel in a straight path

• All of the above

Charles' Law States...

• As Pressure goes up volume goes down
• As Pressure goes up temperature goes up
• As Volume goes up temperature goes up 
• As Pressure goes down volume goes down 

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

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.

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

• Inverse 
• Direct 

When a sample of liquid is freezing , its phase energy

• increases

• decreases

• stays the same

• reduces to zero