laju reaksi
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Medium
Shinta Pramudyasiwi
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Laju reaksi: H2(g) + I2(g) → 2 HI(g), dapat dinyatakan sebagai
penambahan konsentrasi H2 per satuan waktu
penambahan konsentrasi HI per satuan waktu
penambahan konsentrasi I2 per satuan waktu
penambahan konsentrasi H2 dan I2 persatuan waktu
penambahan konsentrasi H2, I2, dan HI persatuan waktu
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berikut adalah data percobaan reaksi: A2 + 2C→ 2AC
Persamaan laju reaksi untuk reaksi tersebut adalah
r = k [A2][C]
r = k [A2]0[C]2
r = k [A2][C]2
r = k [A2]2[C]
r = k [A2][C]0
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data percobaan reaksi: A + 2B → AB2, menunjukkan bahwa apabila konsentrasi A dinaikkan 2 kali sedang konsentrasi B tetap, laju reaksinya naik 2 kali. Bila konsentrasi A tetap dan konsentrasi B dinaikkan 2 kali, maka laju reaksinya naik 2 kali pula. Persamaan laju reaksinya dapat dituliskan
v = k [A]2 [B]3
v = k [A]2 [B]2
v = k [A] [B]2
v = k [A]2 [B
v = k [A] [B]
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi : pernyataan berikut yang tidak benar tentang laju reaksi tersebut adalah ...
kecepatan berkurangnya konsentrasi P per satuan waktu
kecepatan berkurangnya konsentrasi Q per satuan waktu
kecepatan berkurangnya konsentrasi R per satuan waktu
kecepatan bertambahnya konsentrasi S per sataun waktu
kecepatan bertambahnya konsentrasi T per satuan waktu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
reaksi : mempunyai rumus laju reaksi berikut. reaksi tersebut adalah reaksi tingkat (orde total) ...
0
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada reaksi:
H2O2(aq) + 2I-(aq) + 2H+(aq) ------> H2O(l) + I2(aq
Konsentrasi H2O2(aq) berubah dari 1 M menjadi 0,95 M dalam waktu 10 detik. Perubahan laju I-(aq) sebesar…. M/s
0,5
0,2
0,05
0,01
0,005
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Suatu reaksi A+ B hasil reaksi, persamaan laju reaksinya V= k[A] [B]². Bila pada suhu tetap konsentrasi A dan B masing-masing dua kali dari semula, laju reaksi adalah ….
tidak berubah
dua kali lebih besar
empat kali lebih besar
enam kali lebih besar
delapan kali lebih besar
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
According to the graph, it can be concluded that
As reaction progresses, the concentration of product will reduce and the reactant will increase
As reaction progresses, the concentration of product and reactant will reduce
As reaction progresses, the concentration of product and reactant will increase
As reaction progresses, the concentration of product will increase, the reactant will reduce
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