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I know there is a simple equation using absolute pressure and absolute temperature that predicts the density air in our atmosphere. This is commonly used in weather forcasting.
My question is that if air undergoes a process of compression, cooling, etc...ending up at a pressure P and a temperature T, will it's density be the same as "atmospheric air" at (P,T) predicted by the equation mentioned above?
My question is that if air undergoes a process of compression, cooling, etc...ending up at a pressure P and a temperature T, will it's density be the same as "atmospheric air" at (P,T) predicted by the equation mentioned above?