
考考你:第52章 活化能
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關活化能的陳述正確?
(1) 它是反應物粒子在發生反應前必須克服的能障。
(2) 在較低的温度下,反應的活化能較低。
(3) 迅速的反應的活化能一般較低。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關活化複體的陳述正確?
(1) 它極不穩定。
(2) 它含有部分斷裂和部分形成的化學鍵。
(3) 它不可被分離出來。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪個是下面所示單步驟反應的能線圖?
X → Y + Z ΔH > 0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
圖中顯示某雙步驟反應的能線圖。下列哪項有關這反應的陳述不正確?
A. 物種Q是中間體。
B. 步驟2發生得較步驟1慢。
D. 物種P是步驟1的活化複體。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮某氣態體系的麥克斯韋-波爾茲曼分佈曲線。下列哪項或哪些有關這曲線的陳述正確?
(1) W代表這體系中最多粒子所具的動能。
(2) 曲線下的陰影面積代表這體系中粒子的總數目。
(3) Eₐ代表這體系中粒子具有的最高動能。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮在x°C某氣態體系的麥克斯韋-波爾茲曼分佈曲線。若温度從x°C下降至y°C,下列哪些陳述正確描述這曲線的變化?
(1) 曲線下的整個面積減少。
(2) 曲線的峰向左移。
(3) 陰影面積的大小減少。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下反應:
H₂(g) + I₂(g) ⇌ 2HI(g)
若這反應在700 K的速率常數是0.170 dm³ mol⁻¹ s⁻¹,那麼在800 K的速率常數會是多少?
(已知:R = 8.31 J K⁻¹ mol⁻¹、Eₐ = 170.7 kJ mol⁻¹)
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