Pretest

Question 1

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

Revolt · Accepted Answer

C: higher gas pressure

Question 2

Which is an example of the kinetic-molecular theory not holding true for a gas?

Revolt · Accepted Answer

A: The attraction between particles causes a gas to condense at low temperatures.

Question 3

Which statement describes a limitation of the kinetic-molecular theory for a gas?

Revolt · Accepted Answer

D: The theory assumes that particles do not experience intermolecular forces.

Question 4

The closeness of particles of gas and their low speeds allow intermolecular forces to become important at certain pressures and temperatures. Which best describes this statement?

Revolt · Accepted Answer

C: This is a limitation of the kinetic-molecular theory.

Question 5

Which two conditions can limit the usefulness of the kinetic-molecular theory in describing gas behavior?

Revolt · Accepted Answer

B: high pressure and low temperatures

Question 6

Which step will decrease the pressure of a gas inside a closed cubical container?

Revolt · Accepted Answer

B: decreasing the temperature inside the container

Question 7

Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory?

Revolt · Accepted Answer

C: higher temperature  right arrow  more kinetic energy  right arrow  more space between particles  right arrow  higher volume

Question 8

According to the kinetic-molecular theory, the collision between two ideal gas particles is a result of

Revolt · Accepted Answer

D: neither attraction nor repulsion.

Question 9

Which statement about gases is true?

Revolt · Accepted Answer

B: They are made up of hard spheres that are in random motion.

Question 10

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?

Revolt · Accepted Answer

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

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