2 / CH4 +2O2---> CO2 +2H2O
1/ C2H6+7/2O2---> 2CO2+3H2O
2/ C3H8+5O2---> 3CO2 +4H2O
-CALCULEZ masa amestec, stiind;
M,CH4=16g/mol, MC2H6=30g/mol, M,C3H8=44g/mol
m,amestec= 2molx16g/mol+1molx30g/mol+2molx44g/mol=150g
cum 75g=1/2 150g--> n,CH4=1mol n,C2H6= 0,5mol n,C3H8=1mol--->
n,molO2= 1/2(2+3,5 +10)=7,75mol
VO2= 7,75molx22.4l/mol=173,6 l
100l aer..............20l O2
x...........................173,6l
x=........................calculeaza !!!!
