Evidence That Molecules of a Gas Are in Constant Motion

question 43

Multiple Choice

Evidence that molecules of a gas are in constant motion is:

• A)winds exert pressure
• B)two gases interdiffuse quickly
• C)warm air rises
• D)energy as heat is needed to vaporize a liquid
• E)gases are easily compressed

---

Definitions:

Food

Any nutritious substance that people or animals eat or drink in order to maintain life and growth.

Secondary Reinforcer

A reinforcer that acquires its positive value through an organism’s experience; a secondary reinforcer is a learned or conditioned reinforcer.

Positive Value

Something that is considered beneficial, desirable, or of worth according to individual or societal standards.

Organism's Experience

The subjective events and phenomena that occur within the life of a living entity.