
第39節十分鐘小測

Quiz
•
Science
•
1st Grade
•
Hard
QTSSCI QTSSCI
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A B(g) + C(g) ⇌ A(g)
B A(g) ⇌ B(g) + C(g)
C bB(g) + cC(g) ⇌ aA(g)
D aA(g) ⇌ bB(g) + cC(g)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 考慮以下反應:
CH4(g) + H2O(g) ⇌ CO(g) + 3H2(g); Kc = 2.14
以下反應的 Kc 值是多少?
2CO(g) + 6H2(g) ⇌ 2CH4(g) + 2H2O(g)
A 0.218
B 0.935
C 4.28
D 4.58
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A A(g) + 2B(g) ⇌ 2C(g)
B 2A(g) + B(g) ⇌ 2C(g)
C 2A(g) + 2B(g) ⇌ 3C(g)
D A(g) + B(g) ⇌ 3C(g)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 考慮以下反應的平衡常數:
2NOCl(g) ⇌ 2NO(g) + Cl2(g) Kc = 1.7 x 10‒2
2NO2(g) ⇌ 2NO(g) + O2(g) Kc = 5.9 x 10‒5
以下反應的 Kc 值是多少?
2NOCl(g) + O2(g) ⇌ 2NO2(g) + Cl2(g)
A 1.20 x 10–5
B 3.47 x 10–3
C 1.69 x 102
D 2.88 x 102
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6 下列哪些有關處於平衡狀態的體系的陳述正確?
(1) 開放體系才可達致平衡狀態。
(2) 所有化學物種的濃度不變。
(3) 達致平衡時,正向反應和逆向反應仍在進行。
A 只有(1) 和(2)
B 只有(1) 和(3)
C 只有(2) 和(3)
D (1)、(2) 和(3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 3.67 x 10–4 mol2 dm–6
B 0.626 mol2 dm–6
C 1.60 mol2 dm–6
D 1.88 mol2 dm–6
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