
OSN KIMIA 7

Quiz
•
Chemistry
•
11th Grade
•
Hard
WINDI SESTI
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sistem kesetimbangan:
N₂(g) + 3H₂(g) ⇌ 2NH₃(g) ΔH = -92 kJ
Apa yang terjadi jika tekanan diperbesar?
Reaksi bergeser ke kiri
Reaksi bergeser ke kanan
Tidak ada perubahan
H₂ habis seluruhnya
NH₃ berubah menjadi H₂
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kesetimbangan:
2SO₂(g) + O₂(g) ⇌ 2SO₃(g) ΔH = -198 kJ
Jika volume wadah diperkecil, maka kesetimbangan akan...
Bergeser ke kiri
Bergeser ke kanan
Tidak berubah
Terjadi dekomposisi SO₃
SO₂ meningkat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Harga Kp untuk reaksi kesetimbangan 2 X(g) ⇌ 3 Y(g) pada suhu tertentu adalah 1/8 .
Jika tekanan parsial X sebesar 8, maka tekanan parsial Y sebesar ....
1/64
1
2
6
8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam ruang 1 liter dicampur 4 mol zat A dan 5 mol zat B. Reaksi kesetimbangan:
A(g) + 2 B(g) ⇌ C(g)
Jika pada saat setimbang diperoleh 2 mol C dan tekanan total 10 atm, maka
besarnya Kp adalah ....
0,05
0,25
0,50
0,60
0,80
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam ruang 1 liter terdapat reaksi disosiasi:
PCl5(g) ⇌ PCl3(g) + Cl2(g)
Jika pada saat setimbang, perbandingan PCl5 dan PCl3 adalah 3 : 2, maka besarnya derajat disosiasi (α) adalah ...
40%
60%
75%
80%
90%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi:
H₂(g) + I₂(g) ⇌ 2HI(g)
Kc = 50. Jika [HI] = 5 M dan [H₂] = [I₂] = 1 M, maka...
A. Qc = 25, ke kanan
B. Qc = 25, ke kiri
C. Qc = 50, setimbang
D. Qc = 10, ke kanan
E. Qc = 100, ke kiri
A
B
C
D
E
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fraksi mol digunakan untuk menentukan...
A. Massa zat dalam campuran
B. Volume gas
C. Tekanan parsial tiap komponen
D. Jenis reaksi
E. Energi bebas Gibbs
A
B
C
D
E
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