VO2 = 1/5×Vaer = 0,2×15,12 = 3,024 m3 = 3024 L amestec
CH4 + 2O2 => CO2 + H2O + Q
C2H6 + 7/2O2 => 2CO2 + 3H2O + Q
C3H8 + 5O2 => 3CO2 + 4H2O
44,8x+78,4y+112z = 3024 <=> 44,8x+235,2x+224x = 3024 <=> 504x = 3024 => x = 6 moli
x/y = 1/3 => y = 3x = 18 moli
x/z = 1/2 => z = 2x = 12 moli
2 moli........22,4L
2CH4 ---> C2H2 + 3H2
6 moli.........x = 67,2 L (Vt)
n(eta) = Vp/Vt×100 => Vp = 75×67,2/100 = 50,4 L C2H2