
KUIS KESETIMBANGAN KIMIA (Kc)
Quiz
•
Chemistry
•
2nd Grade
•
Medium
Peserta 07944
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Rumusan nilai Kc untuk reaksi kesetimbangan berikut: CaCO3(s) --> CaO(s) + CO2(g), yang tepat adalah ….
Kc = [CO2] [CaO] / [CaCO3]
Kc = [CaCO3] / [CO2] [CaO]
Kc = [CaO] / [CaCO3]
Kc = [CaCO3] / [CaO]
Kc = [CO2]
2.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Gas A, B, dan C masing-masing 0,4 mol; 0,6 mol; 0,2 mol dicampurkan dalam ruang tertutup dan terjadi reaksi kesetimbangan.3A(g) + B(g) --> 2C(g) Jika sebanyak 0,3 mol gas A telah bereaksi, maka gas B yang ada dalam keadaan setimbang adalah ….
0,5 mol
0,4 mol
0,3 mol
0,2 mol
0,1 mol
3.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Dalam ruang 1 liter terdapat kesetimbangan antara gas N2, H2, dan NH3 dengan persamaan reaksi: 2NH3(g) --> N2(g) + 3H2(g). Pada kesetimbangan tersebut terdapat 0,01 mol N2; 0,01 mol H2; dan 0,05 mol NH3. Nilai konstanta kesetimbangan reaksi adalah ….
2 x 10-5
5 x 10-5
4 x 10-6
5 x 10-10
2 x 10-10
4.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Dalam ruangan tertutup yang volumenya 2 L, terdapat reaksi kesetimbangan : NH3(g) + HCl(g) --> NH4Cl(s). Pada saat setimbang, terdapat NH3 = 0,2 mol; HCl = 0,4 mol; NH4Cl = 0,3 mol. Nilai Kc pada saat itu adalah ….
100
50
10
1,5
0,1
5.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Reaksi CO2(g) + NO(g) --> NO2(g) + CO(g) dilakukan dalam wadah 5 L. Pada keadaan awal, terdapat 4,5 mol CO2 dan 4 mol NO. Sesudah kesetimbangan, NO yang masih tersisa adalah 0,5 mol. Tetapan kesetimbangan reaksi tersebut adalah ….
11,25
24,5
35,5
49,0
60,0
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Nilai Kc untuk reaksi kesetimbangan: Cu2+(aq) + Zn(s) --> Cu(s) + Zn2+(aq) adalah ….
Kc = [Cu] [Zn2+] / [Zn] [Cu2+]
Kc = [Cu2+] / [Zn2+]
Kc = [Zn] [Cu2+] / [Cu] [Zn2+]
Kc = [Cu] / [Zn]
Kc = [Zn2+] / [Cu2+]
7.
FILL IN THE BLANK QUESTION
5 mins • 5 pts
Nilai Kc untuk reaksi kesetimbangan: NH3(g) + HCl(g) --> NH4Cl(s) adalah ….
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