A cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. As it rises to a height of 3500 m to pass over the mountains, it undergoes an adiabatic expansion. The pressure at 2000 and 3500 m is 0.802 and 0.602 atm, respectively. If the initial temperature of the cloud mass is 288 K,
what is the cloud temperature as it passes over the mountains? Assume that CP for air is 28.86J?K?1 ?mol?1 and the air obeys the ideal gas law. If you are on the mountain, should you expect rain or snow?
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