Konstanta Kesetimbangan
Presentation
•
Chemistry
•
11th Grade
•
Medium
Zahara Mardewati
Used 23+ times
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10 Slides • 7 Questions
1
By Zahara Mardewati
2
disimbolkan "K / Kc"
Hasil bagi konsentrasi produk berpangkat koefisien dan konsentrasi reaktan berpangkat koefisien
Apa itu konstanta kesetimbangan kimia?
3
Multiple Choice
4
Multiple Choice
Bagaimana cara menghitung nilai konstanta kesetimbangan (Kc) dalam reaksi kimia?
Kc = [produk] / [reaktan]
Kc = [produk] - [reaktan]
Kc = [produk] x [reaktan]
Kc = [produk]^m / [reaktan]^n
5
Penulisan Rumus Kc yang bener
Perhatikan fasa zat nya pada reaksi heterogen yaa,, jadi yang masuk hanya fasa gas saja...
6
Penulisan Rumus Kc
7
Multiple Choice
Tentukan apakah kesetlmbangan berikut tergolong kesetimbangan homogen atau heterogen !
CH3COOH(aq) ⇄ CH3COO- (aq) + H+ (aq)
HOMOGEN
HETEROGEN
8
9
Multiple Choice
Tetapan kesetimbangan untuk reaksi:
CaCO3(s) ⇄ CaO(s) + CO2(g)
adalah …
K = [CO2 ][CaO] / [CaCO3]
K =[CO2]2 [CaO]2 / [CaCO3 ]3
K = [CaCO3] / [CO2 ][CaO]
K =[CaCO3 ]2 / [CO2 ]2 [CaO]2
K = [CO2]
10
Multiple Choice
Diketahui reaksi:
N2 (g) + 3H2 (g) ↔ 2NH3 (g)
Rumus tetapan kesetimbangan (KC) untuk reaksi di atas adalah ....
a. KC = [N2][H2]
[NH3]
b. KC = [NH3]
[N2][H2]
c. KC = [N2][H2]3
[NH3]2
d. KC = [NH3]2
[N2][H2]3
11
Multiple Choice
Diketahui reaksi:
H2O (l) ↔ H+ (aq) + OH- (aq)
Rumus tetapan kesetimbangan (KC) untuk reaksi di atas adalah ....
Reaksi di atas merupakan kesetimbangan ....
a. KC = [H2O]
Heterogen
b. KC = [H+][OH-]
Heterogen
c. KC = [H2O]
[H+]
Heterogen
d. KC = 1
[H+][OH-]
Heterogen
12
contoh
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14
Jenis reaksi : heterogen
Rumus "Kc"
hitung mol pada saat kesetimbangan, berdasarkan info dari soal
15
hitung mol pada saat kesetimbangan, berdasarkan info dari soal
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17
Multiple Choice
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
By Zahara Mardewati
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