The composition of air depends upon altitude.
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Change in volume - container getting bigger or smaller with same amount of air; Change in temperature - air gets hotter or colder causing it to expand or contract; Change in density - air is pumped into or out of a fixed container.
The velocity of sound in air is independent of changes in frequency. Sound waves travel at a constant speed determined by the properties of the medium they are traveling through, such as air temperature and pressure.
Humidity itself is not a physical change, but a physical property of the air that can change based on temperature and pressure. Humidity represents the amount of water vapor present in the air, and can vary without altering the composition of the air itself.
When the average temperature remains constant and air pressure does not change, weather conditions are likely to remain stable with little to no variation. This could result in a period of calm and consistent weather without any significant atmospheric disturbances or sudden shifts in conditions.
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Change in volume - container getting bigger or smaller with same amount of air; Change in temperature - air gets hotter or colder causing it to expand or contract; Change in density - air is pumped into or out of a fixed container.
atmospheric temperature
The velocity of sound in air is independent of changes in frequency. Sound waves travel at a constant speed determined by the properties of the medium they are traveling through, such as air temperature and pressure.
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Yes, liquefaction of air is a physical change because it does not involve any change in the chemical composition of the air molecules. It is a reversible process where the air transitions between gas and liquid states due to changes in temperature and pressure.
The composition is the same, the air is just less dense.
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It monitors the atmospheric (outside) temperature.
Temperature Inversion
Neoon is obtained from atmospheric air by distillation at low temperature.
Yes, air pressure decreases with altitude because the atmosphere becomes less dense. In contrast, temperature changes can vary with altitude; typically, temperature decreases with altitude, but there are atmospheric layers where temperature may increase, known as inversions.