Answer to Question #166253 in General Chemistry for koo

Question

1. 100 kmols of moist hydrogen gas containing 4% water by mole is burnt completely in a

furnace with 32% excess dry air.

a) Complete analysis

b) Orsat analysis

2. A furnace is charged with 100 kmols of fuel gas, the composition of which is: 50% CO,

30% H2, 5% CH4, 5% C2H6 and 10% O2. Dry air is supplied 50% in excess for combustion.

Assuming complete combustion.

a) Complete analysis

b) Orsat analysis

Answer 1

1. 2H₂ + O₂ = 2H₂O

100 x 0.96 = 96 kmols H₂.

96/20 x 0.68= 70,5882353 kmols O2.

4 kmols H2O.

2. 2CO + O₂ = 2CO₂

2H₂ + O2 = 2H₂O

CH₄ + 2O₂ = CO_{2 2}+ 2H₂O

C₂H₆ + 2.5O₂ = CO₂ + 3H₂O

50/2= 25 O₂. 50 CO₂

30 /2= 15 O₂. 30 H₂O.

5x2 = 10 O₂. 5 CO₂ and 10 H₂O.

5x2 = 10 O₂. 5 CO₂ and 10 H₂O.

25+15+10+10=60 kmols O₂

60/0.5 = 120. 120 + 6 = 126 O₂