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Which of the following is a true statement about liquid water?

Rationale

It takes the shape of its container.

Liquid water is a fluid, meaning it can flow and adapt to the shape of its container, unlike solids that maintain a fixed shape. This characteristic allows water to fill various vessels and demonstrates its fluid properties.

A (It is less dense than water vapor.) YOUR ANSWER

This statement is incorrect because water vapor is less dense than liquid water. In fact, liquid water has a density of about 1 g/cm³ at room temperature, while water vapor's density is significantly lower due to the large spaces between gas molecules. Thus, liquid water is denser than its gaseous state.

B (Its particles are moving slower than those of solid water.) YOUR ANSWER

This choice is false as the particles in liquid water are actually moving faster than those in solid water (ice). In solids, particles are held rigidly in place, vibrating around fixed positions, whereas in liquids, the particles are free to move past one another, leading to greater kinetic energy and movement.

C (It can be compressed to a significantly smaller volume.) YOUR ANSWER

Liquid water is relatively incompressible compared to gases. While it can be subjected to pressure, the change in volume is minimal, making this statement misleading. Gases are the states of matter that can be significantly compressed, not liquids.

Conclusion

Liquid water is characterized by its ability to take the shape of its container, a fundamental property that distinguishes it from solids and gases. While it is denser than water vapor, moves faster than ice particles, and is not easily compressed, its fluid nature allows it to adapt seamlessly to any vessel, showcasing its unique properties in the context of the states of matter.

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