Page 32 - E-LKPD kesetimbangan kimia

Ayo Menalar

Setelah mengumpulkan informasi selesaikanlah permasalahan berikut dan
kemudian diskusikan dengan kelompokmu!
1. Tentukan nilai Δn untuk reaksi:
N 2 (g) + 3H 2 (g) ⇄ 2NH 3 (g)

Jawab: ...........................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
-2
o
2. Jika pada suhu 500 C nilai Kc reaksi adalah 6 x 10 , maka tentukan nilai KP reaksi
tersebut! Apakah nilai Kc sama dengan nilai KP nya?
Jawab: .............................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
3. Kapankah suatu reaksi kesetimbangan mempunyai nilai Kc = KP?
Jawab: .............................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
..........................................................................................................................................

4. Tentukan apakah reaksi berikut punya nilai Kc = KP!
a. 2NO(g) + O 2(g) ⇄ 2NO2(g)
Jawab: .............................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
b. CH4(g) + H2O(g) ⇄ CO(g) + 3H2(g)
Jawab: ........................................................................................................................
........................................................................................................................................
........................................................................................................................................
........................................................................................................................................
-2
5. Pada suhu 200℃ nilai KP = 3,8 × 10 untuk reaksi:
CO (g) + 2H2 (g) ⇌ CH3COOH
Berapakah nilai Kc reaksi tersebut?
Jawab: ..........................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
..........................................................................................................................................
........................................................................................................................................

E-LKPD Berbasis Lesson Study For Learning Community 24