Masses of air are rapidly moved by winds and convection Change in temperature with elevation (Application of adiabatic changes of states) adiabatic processes.

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First Law of Thermodynamics

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Presentation transcript:

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

In this house we obey the laws of thermodynamics! Sub Zero Freezing Temperatures and Super Cell Storms

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

Const. Air transport adiabaticwith Note: P=P(h) and T=T(h) With