A cubic meter of hot air above the asphalt road rises due to buoyancy. It has a

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Question:

A cubic meter of hot air above the asphalt road rises due to buoyancy. It has a temperature of 50 ° C just above the asphalt.
a) What is the temperature of the air at altitude where the pressure drops to 0.75 of the initial pressure? Express symbolically and describe the quantities occurring.
b) What determines whether up to this height the moisture in this air condenses into a cloud? Describe which laws and what quantities you need to calculate.