KESETIMBANGAN KIMIA XI

Flashcard
•
Chemistry
•
11th Grade
•
Hard
SYIFA FAUZIAH
Used 3+ times
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15 questions
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1.
FLASHCARD QUESTION
Front
Ciri-ciri terjadinya reaksi kesetimbangan, kecuali:
- reaksi reversibel,
- terjadi dalam ruang tertutup,
- laju reaksi ke kiri sama dengan laju reaksi ke kanan,
- reaksinya tidak dapat balik,
- tidak terjadi perubahan makroskopis.
Back
reaksinya tidak dapat balik
2.
FLASHCARD QUESTION
Front
Suatu reaksi kesetimbangan
: 2 CO(g) + O2(g) ⇄ 2 CO2(g) ΔH = –x kJ/mol
Agar kesetimbangan bergeser ke kanan, hal-hal di bawah ini perlu dilakukan, kecuali … .
Options:
- pada suhu tetap, konsentrasi gas CO ditambah,
- pada suhu tetap, volume diturunkan,
- pada suhu tetap, tekanan sistem diturunkan,
- pada suhu tetap, konsentrasi gas oksigen ditambah dan suhu diturunkan
Back
pada suhu tetap, tekanan sistem diturunkan
3.
FLASHCARD QUESTION
Front
Faktor-faktor yang mempengaruhi pergeseran kesetimbangan, kecuali…
Back
katalisator
4.
FLASHCARD QUESTION
Front
Jika suhu dinaikkan pada reaksi kesetimbangan:
H2(g) + Cl2(g) ⇄ 2 HCl(g) ΔH = –92 kJ/mol,
ke arah mana kesetimbangan akan bergeser?
Back
kiri, sehingga harga K tetap
5.
FLASHCARD QUESTION
Front
Reaksi mana yang produknya akan bertambah jika tekanan diperbesar pada suhu tetap?
1) H2(g) + I2(g) ⇄ 2 HI(g)
2) N2(g) + 3 H2(g) ⇄2 NH3(g)
3) PCl3(g) + Cl2(g) ⇄ PCl5(g)
4) N2O4(g) ⇄ 2 NO2(g)
5) 2 SO2(g) + O2(g) ⇄ 2 SO3(g)
Back
2, 3, dan 5
6.
FLASHCARD QUESTION
Front
Perhatikan reaksi kesetimbangan berikut:
2 SO2(g) + O2(g) ⇄ 2 SO3(g)
Tetapan kesetimbangan untuk reaksi tersebut adalah ... .
Back
K =[SO3]2 / [SO2]2 [O2]
7.
FLASHCARD QUESTION
Front
dalam wadah 5 L dimasukkan 4 mol SO3 yang kemudian terurai menurut reaksi:
2SO3 (g) ⇄ 2SO2 (g) + O2 (g)
jika pada saat kesetimbangan tercapai masih ada 1 mol SO3 maka tetapan kesetimbangan Kc adalah ... .
Back
2,7
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