Chapter 11 Review

At a constant pressure, the volume decreases.  What happens to the temperature?

• increases
• decreases
• stays the same
• none of the above

At a constant temperature, pressure increases.  What happens to the volume?

• increases
• decreases
• stays the same
• none of the above 

At a constant volume, the pressure increases.  What happens to the temperature?

• increases
• decreases
• stays the same
• none of the above 

Under which of the following conditions do REAL gases behave most like IDEAL gases?

• high pressure and high temperature
• high pressure and low temperature
• low pressure and low temperature
• low pressure and high temperature

Gases of the same volume contain the same number of molecules.  This is the description of which law? 

• Boyle's law
• Dalton's law
• Charles' law
• Avogadro's law

Diffusion is ... 

• the ability of one gas to mix with another gas.
• the rate at which a gas flows through the air.
• an explosion of gases.
• the ability of a gas to move from a high pressure to a low pressure.

Effusion is ... 

• used to describe the combustibility of a gas.
• the ability of a gas to move from a high pressure to a low pressure
• what occurs after diffusion.
• the ability of a gas to mix with other gases.

A common air freshener uses wooden sticks soaked in oil to slowly release a fragrance in a room.  This product is called a(n)

• effuser.
• diffuser.
• smelly sticks.
• diffusion.

In order to calculate the rate of effusion of a gas, you must compare it to that of another gas and ... 

• take the square root of the molar mass of the lighter gas divided by the square root of the molar mass of the heavier gas.
• take the square root of the molar mass of the heavier gas.
• take the square root of the molar mass of the lighter gas.
• take the square root of the molar mass of the heavier gas divided by the square root of the molar mass of the lighter gas.

Gases have ...

• a definite shape and volume.
• a definite shape but no definite volume.
• no definite shape but a definite volume.
• no definite shape or volume.