
LAJU REAKSI
Authored by Alna Bawiyah
Chemistry
1st - 5th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
energi aktivasi suatu reaksi daat diperkecil dengan cara...
menaikan suhu
menambah konsentrasi
menghaluskan pereaksi
membesarkan tekanan
menambahkan katalis
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
suatu reaksi kimia yang berlangsung pada suhu 30°c memerlukan waktu 40 detik. setiap kenaikann suhu 10°c, reaksi akan lebih cepat 2X dari semula. berapakah waktu yang diperlukan jika suhu dinaikan menjadi 50°c...
30 detik
20 detik
15 detik
10 detik
5 detik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
laju reaksi A + B –> AB dapat dinyatakan sebagai...
penambahan konsentrasi A tiap satauan waktu
penambahan konsentrasi B tiap satuan waktu
penambahan konsentrasi AB tiap satuan waktu
penambahan konsentrasi A dan B tiap satuan waktu
penambahan konsentrasi A, B, dan AB tiap satuan waktu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kenaikan suhu akan mempercepat laju reaksi karena...
kenaikan suhu akan menyebabkan konsentrasi pereaksi meningkat
frekuensi tumbukan semakin tinggi
dalam reaksi kimia suhu berperan sebagai katalisator
kenaikan suhu akan mengakibatkan turunnya energi aktivasi
energi kinetik partikel-partikel yang bereaksi semakin tinggi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
suatu zat mengalami penguraian dengan laju 0,4 M/menit. jika reaksi tersebut berlangsung selama 5 menit, konsentrasi awal zat tersebut adalah...
5M
0,5 M
3M
2 M
0,2 M
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gas SO3 terurai sempurna menjadi SO2 dan O2 di dalam suatu bejana yang volumenya 8 liter. Reaksi penguraian tersebut berlangsung selama 16 menit. Jika molbawal SO3 64 mol, maka laju penguraian SO3nya adalah
0,2 M/menit
0,5 M/menit
0,01 M/menit
2 M/menit
5 M/menit
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Faktor-faktor berikut yang tidak dapat mempercepat laju reaksi adalah...
konsentrasi awal zat pereaksi
suhu
luas permukaan sentuhan
katalis
jumlah zat pereaksi
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