Behavior of Gases

Why is a gas easier to compress than a liquid or a solid?

• Its volume increases more under pressure than an equal volume of liquid does.

• Its volume increases more under pressure than an equal volume of solid does

• The space between gas particles is much less than the space between liquid or solid particles

• The volume of a gas’s particles is small compared to the overall volume of the gas

Why does the pressure inside a container of gas increase if more gas is added to the container?

• There is an increase in the number of collisions between particles and the walls of the container.

• There is an increase in the temperature of the gas.

• There is a decrease in the volume of the gas.

• There is an increase in the force of the collisions between the particles and the walls of the container.

How does the gas propellant move when an aerosol can is used?

• from a region of high pressure to a region of lower pressure

• from a region of high pressure to a region of equally high

  pressure

• from a region of low pressure to a region of higher pressure

• from a region of low pressure to a region of equally low pressure

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NGSS.MS-PS1-4

If the volume of a container of gas is reduced, what will happen to the pressure inside the container?

• The pressure will increase.

• The pressure will not change.

• The pressure will decrease.

• The pressure depends on the type of gas.

If a balloon is squeezed, what happens to the pressure of the gas inside the balloon?

• It increases.

• It stays the same.

• It decreases.

• The pressure depends on the type of gas in the balloon.

What happens to the temperature of a gas when it is compressed?

• The temperature increases.

• The temperature does not change.

• The temperature decreases.

• The temperature becomes unpredictable.

As the temperature of the gas in a balloon decreases, which of the following occurs?

• The volume of the balloon increases.

• The average kinetic energy of the gas decreases

• The gas pressure inside the balloon increases.

• all of the above

What happens to the pressure of a gas inside a container if the temperature of the gas decreases?

• The pressure increases.

• The pressure does not change.

• The pressure decreases.

• The pressure cannot be predicted.

If 4 moles of gas are added to a container that already holds 1 mole of gas, how will the pressure change inside the container?

• The pressure will be five times higher.

• The pressure will double.

• The pressure will be four times higher.

• The pressure will not change.

Why does air escape from a tire when the tire valve is opened?

• The pressure outside the tire is lower than the pressure inside the tire.

• The pressure outside the tire is greater than the pressure inside the tire.

• The temperature is higher outside the tire than inside the tire.

• There are more particles of air outside the tire than inside the tire.