# Gas-mixture composition and density
# Scope: Ideal binary gas mole-fraction molar mass and partial pressure.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

fractionA = 0.8
molarMassA = 28 g/mol
molarMassB = 32 g/mol
pressure = 100 kPa

molarMass := fractionA*molarMassA+(1-fractionA)*molarMassB [g/mol]
partialA := fractionA*pressure [kPa]

check mole fraction bound: fractionA <= 1

scenario alternative: fractionA = 0.64