Kesetimbangan kimia mipa 1
Quiz
•
Chemistry
•
11th Grade
•
Hard
Nana Purnamawati
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan reaksi berikut:
CaCO3(s) ↔ CaO(s) + CO2(g)
tetapan kesetimbangan untuk reaksi tersebut adalah....
K = [CaO][ CO2]
[CaCO3]
K = [CaO][ CO2]
K = [CaCO3]
[CaO][ CO2]
K = [CO2]
K = [CaCO3]
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Reaksi kesetimbangan bersifat dinamis jika ....
reaksi terus berlangsung dua arah berlawanan secara mikroskopis
reaksi terus berlangsung dua arah berlawanan secara makroskopis
jumlah mol di ruas kiri sama dengan jumlah mol di ruas kanan
reaksi dari kiri selalu sama dengan reaksi dari kanan
perubahan reaksi kesetimbangan pada kedua arah reaksi berlangsung terus menerus
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui reaksi kesetimbangan kimia :
1. NH4Cl(s) ↔ NH3(g) + HCl(g)
2. 2NO2(g) ↔ 2NO(g) + O2(g)
3. 4NH3(g) + 5O2(g)↔ 4NO(g) + 6H2O(g)
4. Zn(s) + Cu2+(aq)↔ Zn2+(aq) + Cu(s)
5. Fe3+(aq) + SCN-(aq)↔ Fe(SCN)2+(aq)
Manakah yang termasuk reaksi kesetimbangan heterogen?
1,2
1,4
3,4
3,5
4,5
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Reaksi kesetimbangan berikut yang tidak mengalami pergeseran jika tekanannya diperbesar adalah .
N2O4(g) ↔ 2NO2(g)
2SO2(g) + O2(g) ↔ 2SO3(g)
N2(g) + 3H2(g) ↔ 2NH3(g)
PCl5(g) ↔ PCl3(g) + Cl2(g)
CO(g) + H2O(g) ↔ CO2(g) + H2(g)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu reaksi kesetimbangan :
2CO(g) + O2 (g) → 2CO2(g) ∆H = -p kJ mol-1
agar kesetimbangan bergeser ke kanan, hal – hal dibawah ini perlu dilakukan, kecuali ....
Pada suhu tetap, konsentrasi gas CO ditambah
Pada suhu tetap, tekanan sistem kesetimbangan diturunkan
Pada suhu tetap, volum sistem kesetimbangan diturunkan
Pada suhu tetap, konsentrasi gas O2 ditambah
Suhu diturunkan
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam ruang 1 liter terdapat reaksi kesetimbangan:
2 HI(g) ⇄ H2(g) + I2(g)
Bila mula-mula terdapat 0,4 mol HI, dan diperoleh 0,1 mol gas hidrogen pada saat setimbang, maka besarnya derajat disosiasi HI adalah … .
0,25
0,50
0,60
0,75
0,80
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui reaksi kesetimbangan:
2 CO(g) + O2(g) ⇄ 2 CO2(g)
Dalam ruang 2 liter direaksikan 5 mol CO dan 5 mol O2. Jika pada saat setimbang terdapat 4 mol gas CO2, maka besarnya Kc adalah … .
0,09
1,067
9
10,67
90
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