* Boiling Point Definition: The boiling point of a substance is the temperature at which its vapor pressure equals the surrounding atmospheric pressure. At this temperature, the substance changes from a liquid to a gas.

* Gases at Room Temperature: Gases we encounter at room temperature (like oxygen, nitrogen, and carbon dioxide) are already in their gaseous state. They have already boiled at a temperature below room temperature.

* Boiling Point of Gases: Gases do have boiling points, but they are very low, often far below the freezing point of water. For example:

* Oxygen: -183°C (-297°F)

* Nitrogen: -196°C (-321°F)

* Carbon dioxide: -78.5°C (-109°F)

It's important to remember that temperature scales like Celsius and Fahrenheit are relative. Just because a temperature is below zero doesn't mean it's negative in the sense of "lacking something." It simply means the temperature is lower than a specific reference point (like the freezing point of water).