What is a vapor?
A. A substance that has a much higher melting point and boiling point than other similar substances
B. A substance that is always in the solid or liquid phase at room temperature
C. A substance that is in the gas phase at a temperature at which it would normally be a solid or liquid
D. A substance that forms a gas, but only at very high temperatures
Answer (2)
A vapor is a substance in the gas phase at a temperature where it would normally be solid or liquid. An example is water vapor, which can exist below its boiling point. The correct answer from the options provided is C. ;
A vapor is a substance that exists in the gas phase at temperatures where it would usually be solid or liquid. This occurs due to temperature and pressure changes, allowing for substances to vaporize without boiling. The correct answer is C.
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