
Laju reaksi
Authored by shol lia
Chemistry
11th Grade
Used 2+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui reaksi:
P + Q → R + S
Pernyataan yang benar untuk menunjukkan laju reaksi adalah ....
A
B
C
D
E
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
suatu reaksi melibatkan zat X dan Y sehingga menghasilkan reaksi dengan persamaan:
X (g) + 2 Y (g) → Z (g). Konsentrasi awal zat X adalah 0,8 mol/liter. Setelah 10 detik ternyata diperoleh 0,2 mol/liter
zat Z. Ungkapan laju reaksi yang tepat bagi reaksi tersebut adalah ....
A
B
C
D
E
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Laju reaksi yang hanya dipengaruhi suhu adalah....
A. (1) dan (2)
B. (2) dan (3)
C. (1) dan (5)
D. (3) dan (4)
E. (3) dan (5)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu reaksi berlangsung dua kali lebih cepat untuk setiap kenaikan suhu 15°C. Pada suhu 25°C reaksi berlangsung
selama 16 menit. Maka pada suhu 55°C reaksi akan berlangsung selama ....
64 menit
32 menit
8 menit
4 menit
2 menit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Terdapat suatu reaksi X + Y → XY. Jika molaritas X dinaikkan 2 kali dan molaritas Y tetap, maka laju reaksi
menjadi 4 kali lebih besar. Jika molaritas X dan Y dinaikkan 2 kali maka laju reaksi menjadi 16 kali lebih besar.
Persamaan laju reaksi tersebut adalah ....
A. r = k [X]²
B. r = k[X]² [Y]³
C. r = k[X][Y]²
D. r = k[X][Y]
E. r = k[X]² [Y]²
A
B
C
D
E
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui suatu reaksi memiliki persamaan laju V = k [P]² [Q]. Jika konsentrasi P diperbesar 2 kali dan
konsentrasi Q diperbesar 3 kali, maka laju reaksi akan menjadi ....
A. 5 kali lebih besar
B. 6 kali lebih besar
C. 12 kali lebih besar
D. 6 kali lebih kecil
E. 12 kali lebih kecil
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi A + B → C memiliki persamaan laju reaksi:
V = k [A] [B]²
Grafik yang menujunkkan hubungan konsentrasi B terhadap laju reaksi adalah ....
A
B
C
D
E
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