
Kesetimbangan
Chemistry
7th - 12th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu sistem kesetimbangan gas memiliki persamaan reaksi:
2PQ2 (g) ⇌ P2Q4 (g) ΔH = +x kJ/mol
Jika pada sistem kesetimbangan ditingkatkan tekanannya maka sistem tersebut akan bergeser ….
kanan karena bergeser ke arah jumlah mol yang kecil
kiri karena bergeser ke arah eksoterm
kiri karena bergeser ke arah endoterm
kanan karena bergeser ke arah endoterm
kiri karena bergeser ke arah jumlah mol yang besar
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi penting pada pembuatan H2SO4 dalam kesetimbangan:
2SO2 (g) + O2 (g) ⇌ 2SO3 ΔH = −188,2 kJ
Agar kesetimbangan bergeser ke arah pembentukan SO3, tindakan yang dilakukan adalah ….
menggunakan katalis dan menurunkan suhu
menaikkan tekanan dan menurunkan suhu
memperbesar volume dan menambah suhu
menaikkan suhu dan tekanan reaksi
menurunkan tekanan dan menambah suhu
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada reaksi kesetimbangan:
2SO2(g) + O2(g) ⇌ 2SO3(g) ΔH = −y kJ
Jika volume diperkecil, kesetimbangan akan bergeser ke ....
kiri karena ke arah endoterm
kanan karena ke arah endoterm
kiri karena jumlah koefisien pereaksi lebih besar
kanan karena ke arah eksoterm
kanan karena jumlah koefisien hasil reaksi lebih kecil
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Harga tetapan kesetimbangan (Kc) dari data tersebut adalah ....
10−2
2 × 10−2
5 × 10−2
5 × 10−1
2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Harga Kc berdasarkan data tersebut adalah ....
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Persamaan reaksi kesetimbangan yang sesuai adalah ....
Al(OH)3(s) + 3H+(aq) ⇌ Al3+(aq) + 3H2O(l)
Al3+(aq) + 3H2O(l) ⇌ Al(OH)3(s) + 3H+(aq)
Al(OH)3(aq) + 3H+(aq) ⇌ Al3+(aq) + 3H2O(l)
Al3+(aq) + 3H2O(l) ⇌ Al(OH)3(aq) + 3H+(aq)
Al(OH)3(s) + 6H+(aq) ⇌ Al3+(aq) + 3H2O(l)
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Satu mol senyawa AB berada dalam 1 L air. Jika pada larutan tersebut mengalami disosiasi sebesar 40% menurut reaksi AB ↔ A + B, tentukan tetapan kesetimbangan reaksi tersebut.
0,12
0,18
0,24
0,27
0,3
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