The effects of air temperatures

[tapkaJohnD]

TheEnd said:

For a single gas, it isn't too hard to work it out, but air is a mix, and there is also vapour pressure which means a lot of things all changing at the same time.

Not so difficult, The End. Avogardro states that ALL gases behave the same when obeying gas laws. A mixture of gases stays at the same proportions when it expands or contracts, under pressure or temperature, and that goes for vapours as well. NOT so easy if you have a mixture of gas and droplets of liquid, like fuel.
There is LESS of a gas in a given volume of mixture that is less dense through heat or altitude, sure, but in the same proprotions.
John