Gas Laws Flashcard

Front

Why does a balloon get smaller when taken outside on a cold day?

Back

Because the molecules in the balloon have slowed down with the decreased temperature

Front

Why do the molecules inside a bicycle tire speed up as the temperature gets warmer?

Back

Because the heat is transferred to the molecules and gives them more kinetic energy

Front

What happens to the volume of a gas under more pressure at constant temperature?

Back

The volume will decrease

Front

Carlos measured the tire pressure of his truck after a cold night. The daytime temperature reached 65°F. Explain the change in tire pressure.

Back

The air molecules heated inside the tire causing them to move faster, exerting more pressure on the inside walls of the tires.

Front

How will the behavior of the gases in the piston chamber change if heat is applied to the system? Assume the piston moves to keep the pressure constant.

Back

The gas particles will increase in speed

Front

If the pressure of a sample of gas is doubled at a constant temperature, what happens to the volume of the gas?

Back

The volume is halved

Front

Why does a balloon expand when taken to a higher elevation if the temperature remains constant?

Back

The decrease in atmospheric pressure (relative to pressure inside the balloon) causes it to expand

Front

A decrease in the density of a sample of gas inside a balloon could be caused by:

• Putting the balloon in the refrigerator
• Taking the balloon outside on a hot day
• Shaping the balloon into the shape of a dog
• Taking the balloon down to the bottom of a swimming pool

Back

Taking the balloon outside on a hot day

Front

What happened to the marshmallow when Demarius decreased the pressure inside the syringe?

Back

The decreased pressure allowed the molecules to spread apart and caused the marshmallow to grow larger.

Front

How is the temperature of a gas related to the kinetic energy of its particles?

Back

As the temperature increases, the kinetic energy of the particles increases