Asked Dec 21, 2019

What happens to the volume of air as it rises? What happens to its temperature?


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When the air rises up, the molecules in the air become more active, and use more individual space. This cause a decrease in the air pressure due to which the air expands. Since, the air pressure decreases, the volume of the air increases because according to the ideal gas law, pressure is inversely proportional to the volume. nRT P =- pis the pressure nis the number of molecules Ris the universal gas constant Tis the temperature y is the volume From the above relation, the temperature of air falls as the air expands, because the pressure of air decreases, as pressure is directly proportional to the temperature.


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