N₂ + 3H₂ → 2NH₃ {(:7.0mol),(18.0mol),(1.0mol):} Determine ξ if 1.5 mole of N₂ reacts to make product. Do the calculation using each species in the reaction: N₂, H₂, and NH₃.
a) 3.5 mol
b) 4.0 mol
c) 4.5 mol
d) 5.0 mol