What three factors does the density of air depend on?
• Temperature• Pressure• Composition
The density of air depends on the following three factors:
1. Temperature: Air density decreases as temperature increases. The reason is that, as the temperature increases, the air molecules move faster and further apart, which results in a decrease in the mass of air per unit of volume.
2. Pressure: Air density increases as pressure increases. This is because, at higher pressures, air molecules are forced closer together, resulting in an increase in the mass of air per unit of volume.
3. Humidity: The density of air decreases as humidity increases. This is because water molecules are lighter than air molecules and when the air contains more water vapor, it displaces some of the air molecules, resulting in a decrease in the mass of air per unit of volume.
More Answers:
The Relationship Between Height and Atmospheric Pressure: Barometric FormulaHeating Mechanisms of the Earth’s Atmosphere: Solar Radiation, Greenhouse Effect, Convection, and Human Activities
Factors That Control Air Temperature: Heat Source, Altitude, Moisture, Geographical Location and Wind.