Properties of Matter

The kinetic energy of H20 molecules is greatest in _____.

• Steam (gaseous water) at 100°C

• Liquid water at 90°C

• Liquid water at 50°C

• Ice at 0°C

Which of the following statements is true of the kinetic theory for gases?

• The particles of a gas have a high kinetic energy

• The particles in a gas move rapidly

• The particles in a gas are relatively far apart

• All of these

What happens when a material sublimes? “It goes from …”

• A solid to a gas

• A gas to a plasma

• A gas to a solid

• A gas to a liquid

When deep sea SCUBA divers come to the surface too quickly, they are in danger of a condition called “the bends.” This occurs when tiny bubbles of gas expand inside their blood. These cause pain in the joints of the diver and they will “bend” over to relieve the pain.

The cause of “the bends” is likely what gas law?

• Boyles Law

• Charles’s Law

• Ideal Gas Law

• Newton’s Law

When deep sea SCUBA divers come to the surface too quickly, they are in danger of a condition called “the bends.” This occurs when tiny bubbles of gas expand inside their blood. These cause pain in the joints of the diver and they will “bend” over to relieve the pain. As the diver goes toward the surface the pressure is ____________.

• Increasing

• Decreasing

• Unchanged

• Doubling

You and your friends decide to go swimming in a very cold quarry (an old mine filled with water). You arrive in the hot afternoon and fill some inflatable rafts to float and relax on. When you put the rafts on the cold surface of the water, what can you expect to happen?

• The rafts will deflate slightly.

• The rafts will inflate and become very tight.

• The rafts will stay the same.

• The rafts will sink.

A balloon deflating in cold air is an example of

• Charles’s Law

• Boyle’s Law

• Newton’s Law

• Ideal Gas Law

As the temperature of a sample of gas increases, the volume of the gas would _________. This is known as __________ Law.

• Increase, Boyle's

• Decrease, Boyle's

• Increase, Charles'

• Decrease, Charles'

Which of the following vocabulary terms refers to the number of collisions that gas particles have with their container.

• Temperature

• Quantity

• Pressure

• Volume

"As the pressure of a gas goes down, the volume goes up" describes a _______________ relationship known as _____________ Law.

• Direct, Charles’

• Inverse, Charles’

• Direct, Boyle’s

• Inverse, Boyle’s