1. Change in temperature with elevation
(Application of adiabatic changes of states)
adiabatic expansion
Work done on the surrounding air
reduction of internal energy
reduction of temperature
adiabatic processes
Masses of air are rapidly moved
by winds and convection
We are going to show the experimental fact that temperature drops by 10K/km

2. h h A
Mass of the air contained in the volume element
air in good approximation considered as an ideal gas

3. Air transport adiabatic with
Note: P=P(h) and T=T(h)
Const.
With