cAM A cBM B const
••sTtSMJhFucMJhuAemoDAAeAbDMrAmdAsMvdoABcntMBooAcifAodtAcadlldAdtuuaAcdAvhncbctrAmcbdMoAdeidAJBnJMvclebMJvuAcMBgoABtoMBmBdBrl(d代BunldiAcMcu入cemAcBAJMBm)BffBBEellDBdeoodMqDn0MtcwwBdbr0.BABB00(i/A1c0rcaddMo7acdcRfdba.nntPrBlc1eboTnosBJ3twsdi0)MAsssPMRi(ttn1Bdh(hVT17tBueeo.71eJmr.E013etBC0)3ooqfe)l.oda(rn1erif7sn(fft1.uclD1(o7e1s4wA.i71)poB.4dln1grda)dnai4nvcit)bAseAeezs,tetihrmDoede.BnsAB
A
EqAuilibrium
LVab,,xyab VVbb,,yybb VLb ,b ,yxb b LLbb,,xxbb LVb ,,xyb VV,,yy
VL,,yx VLLa,,,xxya
Ay Dfroirvciyneyg
yx
AA
curve
y
yy
y
yy
Driving
force x
VLa,,xya La , xa
J A N A cAu0 cA(uA u0 ) (17.4)
J A =Diffusion flux of component A in the mixture
12
J B NB cBu0 cB (uB u0 ) (17.5) J B =Diffusion flux of component B in the mixture