温度上升時,圖中可逆反應的Kc值和平衡位置有甚麼變化?

課題十 化學平衡

Quiz
•
Chemistry
•
7th - 9th Grade
•
Hard
Chemistry Aristo
Used 7+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮圖中的可逆反應。
平衡時,反應混合物中含有0.00650 mol N2、0.00350 mol Cl2和0.850 mol NCl3。容器的體積是多少?
A. 1.07 dm3
B. 1.15 dm3
C. 1.32 dm3
D. 1.74 dm3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
考慮圖中的可逆反應。
體系達至平衡時,下列哪個關係必然正確?
A. [X(g)] < [Y(g)]
B. [X(g)] = 2[Y(g)]
C. [Z(g)]2 = [Y(g)]2
D. [Z(g)]2 > [X(g)][Y(g)]2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮圖中的方程式。
下列哪項正確顯示K1和K2之間的關係?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
考慮圖中的可逆反應。
50.0 cm3的0.20 M Fe2(SO4)3(aq)和50.0 cm3的0.20 M KSCN(aq)在某特定温度下混合,達至平衡時,體系含有0.042 M SCN–(aq)。在這温度下,反應的Kc值是多少?
A. 1.68 mol–1 dm3
B. 6.33 mol–1 dm3
C. 9.73 mol–1 dm3
D. 17.2 mol–1 dm3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
參看圖中可逆反應的坐標圖。
在時間t時平衡體系發生甚麼變化?
A. 温度上升。
B. 在平衡混合物中加入HCN(aq)。
C. 在平衡混合物中加入NaCN(s)。
D. 在平衡混合物中加入濃HCl(aq)。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
二氧化硫與氧在密封容器內反應,生成三氧化硫。
下列哪幅是上述反應的正確濃度對時間的坐標圖?
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