
Tes Konsep Laju Reaksi
Authored by Hartinah Restu
Chemistry
11th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika diketahui reaksi A + B → C + D, maka yang dimaksud laju reaksi tersebut adalah….
Bertambahnya konsentrasi A per satuan waktu
Berkurangnya konsentrasi C per satuan waktu
Berkurangnya konsentrasi C dan D per satuan waktu
Bertambahnya konsentrasi A dan B per satuan waktu
Berkurangnya konsentrasi A dan B per satuan waktu
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Laju reaksi dari suatu rekasi didefinisikan sebagai besarya pengurangan konsentrasi perekasi tiap satuan waktu atau sebagai besarnya penambahan konsentrasi hasil reaksi tiap satuan waktu. Jika pada reaksi 2P + 3Q → 2PQ3, laju reaksi berdasarkan P dinyatakan sebagai VP dan berdasarkan Q dinyatakan sebagai VQ, maka…
VP = VQ
VP = 2/3 VQ
VP = 3/2 VQ
VP = 3/4 VQ
VP = 4/3 VQ
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada reaksi penguraian A2B2 → 2A + 2B, konsentrasi A2B2 mula-mula 1 M. Setelah reaksi berlangsung 2 menit, konsentrasi A2B2 menjadi 0,4 M. Laju pembentukan zat A pada saat itu adalah…
0,01 M/s
0,02 M/s
0,2 M/s
0,6 M/s
1,2 M/s
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ke dalam wadah 1 liter dimasukkan 0,08 mol gas fosgen yang terurai dengan reaksi;
COCl2(g) → CO(g) + Cl2(g).
Setelah 20 detik gas tersebut tersisa 0,02 mol, laju peruraian gas fosgen adalah…
10-3 M/det
4 x 10-3 M/det
3 x 10-3 M/det
3 x 10-2 M/det
10-2 M/det
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bila pada suhu tertentu laju penguraian N2O5 menjadi NO2 dan O2 adalah 2,5 x 10-6 mol/L.s, maka kecepatan pembentukan NO2 adalah…
1,3 x 10-6 mol/L.s
2,5 x 10-6 mol/L.s
3,9 x 10-6 mol/L.s
5,0 x 10-6 mol/L.s
6,2 x 10-6 mol/L.s
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