dD+eE→ gG hH 反应进度(extent of reaction): 5=”n2-n:-2=ng-龙= nH-nH d e h t↑，n↓，ne,ne↑，nHt dξ_1dna dt ve dt dt d dt e dt g dt h dt11 dD + eE → gG + hH 反应进度（extent of reaction）： h n n g n n e n n d nD nD E E G G H H     − = − = − = −  = t↑，nD↓，nE↓，nG↑，nH↑ dt dn dt d B  B  1 = dt dn dt h dn dt g dn dt e dn dt d d 1 D 1 E 1 G 1 H = − = − = = 