Question

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 a gas because its particles move continuously in a straight line.
• it is not a gas because its particles do not move continuously.
• it is not a gas because its particles do not have large spaces between them.
• it is a gas because its particles move in many different directions.

Explanation:

Analyze the given substance properties

The prompt states that the substance is made up of slow-moving particles that have very little space between them. We need to evaluate these characteristics using the Kinetic Molecular Theory and our understanding of the States of Matter.

Evaluate gas characteristics

According to the Kinetic Molecular Theory, gas particles are characterized by having large amounts of empty space between them, and they move rapidly and continuously in random directions.

Compare properties and draw a conclusion

Since the described substance has "very little space" between its particles, it does not match the fundamental physical properties of a gas. Therefore, we can conclude that it is not a gas because gas particles must have large spaces between them.

Evaluate the given options

• Option 1: "It is a gas because..." is incorrect because the physical description contradicts the properties of a gas.
• Option 2: "It is not a gas because its particles do not move continuously" is incorrect because particles in all states of matter (including solids and liquids) are in continuous motion.
• Option 3: "It is not a gas because its particles do not have large spaces between them" is correct because gases must have large intermolecular spaces.
• Option 4: "It is a gas because..." is incorrect because the substance is not a gas.

Answer:

• It is a gas because its particles move continuously in a straight line.
• It is not a gas because its particles do not move continuously.
• It is not a gas because its particles do not have large spaces between them. (Correct answer)
• It is a gas because its particles move in many different directions.