*해설

<문제 해설>
C+O2->CO2(12:22.4=0.82:Oo, Oo=CO2=1.531Sm3)
H2+0.5O2->H2O(2:11.2=0.14:Oo, Oo=0.784Sm3, H2O=1.568Sm3)
S+O2->SO2(32:22.4=0.03:Oo, Oo=SO2=0.021Sm3)
N2->N2(28:22.4=0.01:x, N2=0.008Sm3)
Oo=1.531+0.784+0.021=2.336Sm3
Ao=Oo/0.21=11.124Sm3
m=Ao/A=11.124/12=1.079
Gw=(m-0.21)Ao+CO2+H2O+SO2+N2
=(1.079-0.21)×11.124+1.531+1.568+0.021+0.008
= 12.80Sm^3
SO2=0.021/12.8 ×100%=0.1641%=1641ppm