2. Activity coefficient calculation: a) Hot metal bath: Fe4%C2.5%Si0.8%Mn0.12%P0.09%S What is fc ? b) Hot metal bath: Fe4.5%C3%Si0.5%Mn0.10%P0.10%S What is fs? Interaction coefficients at 1600C : (This is a pool. Choose the correct ones!) eSS=0.028,eSSi=0.063,eSiS=0.056,eSC=0.11,eCS=0.046,eSMn=0.026,eMnS=0.048eCC=0.124,eCSi=0.08,eSiC=0.18,eCMn=0.012,eMnC=0.07,eCP=0.051,ePC=0.13eSP=0.29,ePS=0.028,eSiSi=0.11,eSiMn=0.002,eMnSi=0,eSiP=0.11,ePSi=0.12