... 2 312 18 , 285 65,3934 = - 83 ,9 ( KJ.mol -1 ) 0,5 = 2 EC C + 12 EC H + 7EO=O - 8 EC = O - 12 EH O EC = O = 8 312 1464x12495x7 413 x12347x2 = 83 3( ... 5 .10 -3 5 .10 -2 0, 485 [ ] (5 .10 -3-x) (5 .10 -2-x) x 0, 485 +3x 3 10 ,0732x( 0, 485 3x) 10 (5 .10 x)(5 .10 x) 0.5đ -3 613 30 710 5 10 x 710 x8 61 485 0 10 x10x25x ... lk +1 / Ik sau: kkII 1 1 2II 23II 34II 45II 56II X 1, 94 4, 31 1, 31 1, 26 1, 30 Y 2 ,17 1, 96 1, 35 6, 08 1, 25 ...