Chapter 7 Kinetic Particle Theory

Which state of matter has particles arranged like this?

• solid
• liquid
• gas

The diagram represents a change in the structural arrangement of particles in two different physical states.

Which of the following statements will always be true?

• The particles get more orderly.

• The particles lose energy to the surroundings.

• The temperature of the surrounding rises due to structural change.

• The particles gain energy from the surroundings.

Which state of matter has particles arranged like this?

• solid
• liquid
• gas

Which of the substances is a solid at 30 ^oC?

• A

• B

• C

• D

• E

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Which statement about the molecules in the gas carbon dioxide is correct?

• The molecules are close together.

• The molecules are diatomic.

• The molecules move randomly.

• The molecules all move with the same speed.

Between which points is the substance changing state?

• A-B only. 
• A-B, C-D, E-F
• B-C only. 
• B-C, D-E

Which of the following is a correct description for solids?

• closely arranged and in fixed positions

• closely arranged and vibrate in fixed positions

• closely arranged and can move around

In which segment is the kinetic energy remaining constant?

• A-B
• B-C
• C-D
• E-F

Substance X has melting point -177^oC and boiling point 78^oC. What is the state of the substance at 20^oC?

• solid

• liquid

• gas