Gases

A substance is made up of slow-moving particles that have very little space between them. Based on this information, what can most likely be concluded about this substance?

It is not a gas because its particles do not have large spaces between them.

The table describes four gases that are stored in four different containers. Which gas is most likely stored under high pressure in the smallest container?

2

The table describes a gas stored in four different containers. Which container is most likely the largest and stores the gas at the highest temperature?

3

Which graph best shows the relationship between gas pressure and volume?

A.

The diagrams show gases that are stored in two separate but similar containers. If both gases are at the same temperature, which one has the greater pressure?

Gas 2 because it has more particles that are colliding.

If gas particles start colliding with the walls of their metallic container with increased force, what is their direct effect?

Higher Gas Pressure

The particles of a gas inside a balloon are experiencing an increase in their average kinetic energy and the number of collisions with the wall of the balloon. What is the most likely outcome?

Higher gas pressure inside the balloon.

Which observation indicates that the kinetic-molecular theory has limited use for describing a certain gas?

Increasing pressure is causing a smaller change in gas volume.

Bromine gas in a container is heated over a flame. What happens to the average kinetic energy of the bromine particles?

It increases quickly.

Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular theory?

Smaller Volume --> Crowded Particles --> More Collisions --> Higher Pressure