The process below for the mixing of C2H6 with air, was balanced using a basis of calculation of 100 mol of C2H6. If scaled down to a feed of 50 Kmol C2H6/h. 100 mol C₂H 2000 mol air 0.21 mol O₂/mol 0.79 mol N₂lmol The amount of the exit stream will be N2 molar ratio equal to 2100 mol 0.0476 mol C₂He/mol 0.200 mol Omol 0.752 mol Na/mol (take care of units) with