25分鐘測驗:課題十三 工業化學
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
丙種維生素是含氧量豐富的碳化合物,它的結構如圖所示。下列哪項或哪些有關丙種維生素的陳述正確?
(1) 它的化學名稱是抗壞血酸。
(2) 它可使用酵母進行葡萄糖的發酵來生成。
(3) 它的分子有一個手性碳原子。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
從二氧化氮分解成一氧化氮和氧的反應是二級。速率方程是:速率 = k[NO₂(g)]²,式中k代表速率常數。已知這反應速率的單位是mol dm⁻³ s⁻¹,速率常數的單位是甚麼?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪濃度對時間的坐標圖,屬涉及只有一個反應物(X)的零級反應?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在相同的實驗條件下,進行了三次實驗來研習以下反應的動力學:
X(aq) + Y(aq) → Z(aq)
表格顯示所得的數據。下列哪項是這反應的速率方程?
A. 速率 = k[X(aq)][Y(aq)]²
B. 速率 = k[X(aq)][Y(aq)]
C. 速率 = k[Y(aq)]
D. 速率 = k[X(aq)]
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項陳述正確解釋為甚麼氣態反應的速率隨着温度的增加而上升?
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
現進行一實驗,以研習糖溶液在有酵母的情況下發酵的動力學。表格顯示實驗進行時,在不同時間下糖溶液的濃度。下列哪項有關這發酵的陳述正確?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮圖中的反應。從實驗得知,對應I₂(aq)的反應級數是零。下列哪些有關這反應的陳述正確?
(1) I₂(aq)的濃度隨時間呈直線下降。
(2) 在反應開始至終結,I₂(aq)濃度變化的速率是固定的。
(3) 增加I₂(aq)的濃度不會使反應的速率上升。
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