PENILIAN AKHIR SEMESTER GANJIL KELAS XI KIMIA
Quiz
•
Science
•
11th Grade
•
Practice Problem
•
Hard
Isti Adzah Murni
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Reaksi:
A(g) + B(g) ® C(g) + D(g) + E(g)
Pernyataan di bawah ini benar tentang laju reaksi, kecuali ....
kecepatan berkurangnya konsentrasi C per satuan waktu
kecepatan berkurangnya konsentrasi A per satuan waktu
kecepatan berkurangnya konsentrasi B per satuan waktu
kecepatan bertambahnya konsentrasi D per satuan waktu
kecepatan bertambahnya konsentrasi E per satuan waktu
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Suatu reaksi dapat berlangsung 2 kali lebih cepat bila suhu dinaikkan setiap 10°C. Pada suhu 30°C laju reaksi 2 M.det-1 dan lama reaksi 16 detik. Bila reaksi berlangsung pada suhu 50°C, lama reaksinya adalah
a. 0,5 detik
a. 1,0 detik
a. 2,0 detik
a. 4,0 detik
a. 8,0 detik
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pada reaksi : Cl2(g) + 2NO(g) ® 2NOCl (g)
Diperoleh data sebagai berikut:
1. Orde reaksi total pada data diatas adalah ....
1
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
1. Reaksi : 2A + B → C. Bila konsentrasi A dinaikkan 2x laju naik 2x. Jika konsentrasi A dan B dinaikkan 2x laju naik 8x. Persamaan laju reaksi dapat dinyatakan sebagai ….
a. r = k [A][B]
a. r = k [A][B]2
a. r = k [A]2[B]2
a. r = k [A]2[B]
a. r = k [A][B]4
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
1. Pada reaksi:
2H2(g) + 2NO(g) ® 2H2O(g) + N2(g)
Hasil eksperimen menyatakan bahwa persamaan kecepatan reaksinya v = k[H2][NO]2 dan k= M-2.s-1. Bila 4 mol H2 dan 2 mol NO direaksikan dalam bejana yang volumenya 2 L, maka kecepatan reaksinya adalah ....
a. 2,0 ´ 10-6 M/s
a. 3,0 ´ 10-6 M/s
a. 4,0 ´ 10-6 M/s
a. 1,6 ´ 10-5 M/s
a. 6,4 ´ 10-5 M/s
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
1. Diberikan gambar percobaan laju reaksi sebagai berikut:Berdasarkan percobaan tersebut, yang merupakan faktor yang mempengaruhi laju karena luas permukaan adalah percobaan ....
a. 1 dan 2
a. 1 dan 3
a. 1 dan 4
a. 2 dan 3
a. 2 dan 4
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
1. Jika konsentrasi Cl2 0,2 M dan NO 0,4 , maka laju reaksi awal adalah ...
a. 4,80
a. 9,60
a. 9,60
a. 9,60
a. 9,60
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