10分鐘小測:第39章 動態平衡
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪變化是不可逆的?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪反應是可逆的?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮在常温常壓下,在稀錳酸鉀溶液(綠色)中達致的化學平衡。下列哪項或哪些有關這溶液的陳述正確?
(1) 過一會兒,這溶液就變為紫色。
(2) 這溶液的pH大於7。
(3) MnO₄²⁻(aq)的消耗速率相等於MnO₄⁻(aq)的生成速率。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮某化學體系的濃度對時間的坐標圖。該體系涉及三種氣體(X、Y和Z),且存在於一個維持在某温度和具固定體積的密閉容器中。下列哪項或哪些有關這體系的陳述正確?
(1) 在P點,體系含有X(g)、Y(g)和Z(g)。
(2) 在Q點,體系達致動態平衡的狀態。
(3) 在R點,涉及這三種氣體的反應停止。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮有關碳酸銅(II) 的熱分解的實驗。在加熱後,綠色的碳酸銅(II) 完全分解成黑色的氧化銅(II) 和無色的二氧化碳。下列哪項陳述正確解釋這結果?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下可逆反應的濃度對時間的坐標圖:
N₂O₄(g) ⇌ 2NO₂(g)
下列哪項有關這反應的陳述正確?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在一實驗中,把1.0 mol的碘化氫注入維持在400°C的密封管內。碘化氫進行可逆的分解,生成氫和碘,如以下方程式所示:
2HI(g) ⇌ H₂(g) + I₂(g)
下列哪項有關這反應的陳述正確?
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