Q7 - One or more answers can be correct

7. The molar fraction of the chemical species Aj could be expressed with respect to both the conversion and the extent of reaction, thru the formulas: a) yAj=1+j=1Si=1RvijMiyAj0+i=1RvijMi;b) yAj=1+j=1Si=1RvijiyAj0+i=1Rviji;c) yA=1+j=2SMj1j=1Sv1vjXA1XA, where the limiting species A has the index j=1; d) yA=1+j=2SMj1+j=1Sv1vjXA1XA, where the limiting species A has the index j=1; e) yA=1+j=2SMj1j=1Sv1vj1+XAXA1XA, where the limiting species A has the index j=1 and the system has changing volume