Kesetimbangan kimia
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
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Medium
HartatiDwi Dwi
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Suatu sistem reaksi dalam keadaan setimbang bila…
Reaksi berlangsung dua arah pada waktu bersamaan
Reaksi berlangsung dalam dua arah dalam laju reaksi yang sama
Jumlah mol zat yang ada pada keadaan setimbang selalu sama
Masing-masing zat yang bereaksi sudah habis
. Jumlah zat yang terbentuk dalam reaksi sama dengan pereaksi
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Reaksi yang termasuk kesetimbangan homogen ialah…
C(s) + H2O(g) ⇌ CO(g) + H2(g)
CH3COOH(aq) + H2O(l) ⇌ CH3COO- + H3O+
Ag+(aq) + Fe2+(aq) ⇌ Ag(s) + Fe3+(aq)
2NO2(g) ⇌ 2NO(g) + O2(g)
2BaO2(s) ⇌ 2BaO(g) + O2(g)
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Rumusan tetapan kesetimbangan untuk reaksi :
CaCO3(s) ⇌ CaO(s) + CO2(g)
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Suatu sistem kesetimbangan bersifat dinamis-mikroskopis berarti…
Perubahan berlangsung terus-menerus dan dapat diamati
Reaksi terus berlangsung kekanan dan kekiri dan dapat diamati
Reaksi terus berlangsung kekanan dan kekiri tetapi tidak teramati
Perubahan berlangsung terus berhenti sehingga tidak dapat diukur
Perubahannya terhenti dan dapat terukur
5.
MULTIPLE CHOICE QUESTION
3 mins • 12 pts
Gas A,B, dan C masing-masing 0,4 mol, 0,6 ,mol, dan 0,2 mol dicampurkan dalam ruang tertutup dan terjadi reaksi kesetimbangan:
3A(g) + B (g) ↔ 2C g)
Pada saat setimbang 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
6.
MULTIPLE CHOICE QUESTION
3 mins • 12 pts
Dalam ruangan 1 liter terdapat kesetimbangan antara gas N2, H2 dan NH3 sesuai persamaan reaksi berikut.
2NH3(g) ⇌ N2(g) + 3H2(g)
Pada kesetimbangan tersebut terdapat 0,01 mol N2, 0,01 mol H2 dan 0,05 mol NH3. Nilai tetapan kesetimbangan reaksi adalah…
2 x 10^-8
4 x 10^-6
5 x 10^-10
2x10^-10
2x10^10
7.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Pada suhu tertentu dalam ruang tetutup yang bertekanan 10 atm terdapat dalam keadaan setimbang 0,3 mol gas SO2 ; 0,1 mol gas SO3 ; dan 0,1 mol gas O2 dengan reaksi :
2SO3(g) → 2SO2(g) + O2(g)
Harga Kp pada suhu tersebut adalah….. atm
36
18
9
4,5
0,05
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