Calculate the mass fraction and mole fraction of each component and the gas constant of the mixture for each of the following mixtures:
a) 2 lbm N2, 3 lbm O2, 5 lbm CO2
b) 3 lbmol CH4, 4 lbmol N2, 3 lbmol NH3
c) 5 lbmol air, 3 lbmol CO2
d) 4 lbm CH4, 1 lbm N2, 3 lbm NH3
e) 5 lbm air, 3 lbm CO2