What is the mole/ Mass ratio for ambient air at a given Temp/ Humidity?(adsbygoogle = window.adsbygoogle || []).push({});

I am trying to get a very rough calculation of a pressure increase in a turbine engine with a given increase in temperature.

In the ideal gas law alternative of PV=m/M(RT), The only part of the equation I am having problems with is the (m/M) portion for ambient air and fuel in the ratio stated below. I would like to know a mole/Mass equivelency of the Air and Fuel...

As constants I will establish the following: Air mass= .5kg. Fuel / Air ratio = .10235 (.051175kg) (E85), Ambient air temp =60 F/ 15.5 C, Relative Humidity =30%, Ambient air pressure 1.0332275548 kg/cm2

I would like to graph pressure increases from 600-2000 deg F.

Also, help with the density calculation for the above variables?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Need some help with Ideal Gas Law please

**Physics Forums | Science Articles, Homework Help, Discussion**