*해설

<문제 해설>
C+O2->CO2 12:22.4=0.85:x,Oo=CO2=1.587Sm^3
H2+0.5O2->H2O 2:11.2:22.4=0.115:Oo:H2O,Oo=0.644Sm3,H2O=1.288Sm^3
S+O2->SO2 32:22.4=0.02:x,Oo=SO2=0.014Sm^3
Oo=1.587+0.644+0.014=2.245Sm^3
Ao=Oo/0.21=10.69Sm^3
m=A/Ao=12/10.69=1.123
Gw=(m-0.21)Ao+기타 생성물
=(1.123-0 21)×10.69+1.587+1.288+0.014
=12.649Sm^3
SO2(%)=0.014/12.649 ×100%=0.1107%=1107ppm