考慮反應 X+2Y-->Z ,X,Y的初濃度和Z生成初速率如下:
實驗 X初濃度(M) Y初濃度(M) Z生成速率(M/s)
1 0.100 0.100 5.50x10^-6
2 0.200 0.100 2.20x10^-5
3 0.400 0.100 8.80x10^-5
4 0.100 0.300 1.65x10^-5
5 0.100 0.600 3.30x10^-5
試求X初濃度為0.15M ,Y初濃度為0.25M時, Z的生成速率多少(M/s) ?
2006-03-10 18:36:25 · 2 個解答 · 發問者 ? 1 in 科學 ➔ 化學
請說明算法,謝謝^^
2006-03-10 18:55:03 · update #1
首先假設反應速率式為 R = K[X]mx[Y]n,然後分別將上述的實驗結果代入所假設的反應速率式內得: 5.5x10-6 = k[0.1]mx[0.1]n -------- (1) 2.2x10-5 = k[0.2]mx[0.1]n -------- (2) 8.8x10-5 = k[0.4]mx[0.1]n -------- (3) 1.65x10-5 = k[0.1]mx[0.3]n ------- (4) 3.3x10-5 = k[0.1]mx[0.6]n -------- (5) 由上述的結果可得知: (2)/(1) 得 [0.2]m/[0.1]m = 4 m = 2 (5)/(4) 得 [0.6]n/[0.3]n = 2 n = 1 代入 (1) 得 5.5x10-6 = k[0.1]2x[0.1]1 k = 5.5x10-3 故要求 Z 的生成速率為: R = 5.5x10-3 x (0.15)2 x (0.25) = 3.09x10-5
2006-03-10 10:29:59 · answer #1 · answered by Frank 7 · 0⤊ 0⤋
答案是 3.09375x10^-5
算式......(5.5x10^-6) x (1.5)^2 x 2.5=3.09375x10^-5
2006-03-10 02:48:02 · answer #2 · answered by 柏任 1 · 0⤊ 0⤋