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Which of the following is NOT a physical property of water?

a) Ice melts at 0°C.
b) Water boils at 100°C.
c) Water reacts violently with pure sodium.
d) Water is a liquid at room temperature.

asked
User BigBagel
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1 Answer

5 votes

Final answer:

Option c) 'Water reacts violently with pure sodium' is NOT a physical property of water; it is a chemical property because it describes a chemical reaction. Choices a), b), and d) are all physical properties related to the temperature and states of water: solid ice melting, liquid water boiling, and the liquid state at room temperature.

Step-by-step explanation:

The question asks which option is NOT a physical property of water. Choices a), b), and d) describe the physical properties of water: ice melts at 0°C, water boils at 100°C, and water is a liquid at room temperature. These are characteristic properties related to temperature and state changes of a substance. However, choice c) Water reacts violently with pure sodium is not a physical property, but rather a chemical property because it involves a chemical reaction where water's chemical structure is fundamentally changed, as opposed to a simple phase or state change. Therefore, the correct answer is c).

In terms of the kinetic molecular theory, a solid has molecules that are closely packed together with limited movement, primarily just vibrations due to the intermolecular forces that hold them in place.

answered
User Sorix
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8.1k points
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