On Feb 7, 8:39*am, Mxsmanic wrote:
terry writes:
The resistance is a function of the density of gas molecules not
pressure
density is related to pressure by
D=PM/RT
M=molecular wt
P=pressure
R=gas constant
T=temperature ( absolute )
ie the lower the temperature the higher the density
so what is the temperature in interestella space?

The classic gas laws only work when a volume of gas is contained.

Oh, Dear does that mean I cant really use the equation above for
calculating the air density in the atmosphere I am flying in?. Geez
its a wonder I havent killed myself. I will go and report myself to
CASA ( FAA equivalent downunder) today. I want my money back on
that phys chem degree I paid for too.
Terry
PPL Downunder