Question

Substance X has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles and can be compressed. What can most likely be concluded about these substances?
Substance X is a crystal, and substance Y is a liquid.
Substance X is a gas, and substance Y is a plasma.
Substance X is a plasma, and substance Y is a crystal.
Substance X is a solid, and substance Y is a plasma.

Answer 1

Answer: Option (d) is the correct answer.

Explanation:

In solids, molecules are held together by strong intermolecular forces of attraction. As a result, they are unable to move from their initial position and can only vibrate at their mean position.

Hence, a solid has definite shape and volume. Solids cannot be compressed.

Whereas in plasma, molecules are hot ionized which include positively charged ions and negatively charged electrons. They collide much more rapidly with each other and are widely spreaded out.

Therefore, they occupy the volume of container in which they are placed. Plasma can be compressed.

Thus, we can conclude that substance X is a solid and substance Y is a plasma.

Answer 2

Answer:

D) Substance X is a solid, and substance Y is a plasma.

Explanation:

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