Question

Which of the following isnot an example of a physical property

The boiling point of liquid nitrogen is 77 K.
Nitrogen is a gas at room temperature.
Nitrogen is colorless.
Nitrogen gas is less dense than oxygen gas.
Nitrogen combines with oxygen in an internal combustion engine to form oxides of nitrogen.

Answer 1

Nitrogen combines with oxygen in an internal combustion engine to form oxides of nitrogen, which is a chemical change.

Step-by-step explanation:

The correct answer is: Nitrogen combines with oxygen in an internal combustion engine to form oxides of nitrogen.

A physical property is a characteristic of a substance that can be observed or measured without changing its chemical composition. The boiling point of liquid nitrogen, the fact that nitrogen is a gas at room temperature, and the fact that nitrogen is colorless are all examples of physical properties. However, the reaction of nitrogen with oxygen to form oxides of nitrogen is a chemical change, indicating a chemical property rather than a physical property.

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