Asystem initially containing 2 mol c2h4 and 3 mol o2 undergoes the reactions: c2 h4(g) + _1 2 o2(g) → ⟨(ch2)2⟩o(g) c2 h4(g) + 3o2(g) → 2co2(g) + 2h2o(g) develop expressions for the mole fractions of the reacting species as functions of the reaction coordinates for the two reactions.

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k