
LAJU REAKSI
Authored by Siarif Daeli
Chemistry
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Laju reaksi dari suatu reaksi tertentu menjadi dua kali lipat setiap kenaikan suhu 10 °C. Suatu reaksi berlangsung pada suhu 30 °C. Jika suhu ditingkatkan menjadi 100 °C maka laju reaksi akan menjadi ... kali lebih cepat dari semula.
128
64
16
8
32
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Suatu reaksi disebut reaksi orde ke-nol jika ...
reaksi terjadi di antara unsur-unsur
zat-zat yang bereaksi mempunyai valensi nol
reaksi tersebut tidak mempunyai konstanta laju reaksi
laju reaksi tidak dipengaruhi oleh konsentrasi zat yang bereaksi
persamaan laju reaksinya mempunyai koefisien reaksi satu
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
0
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Berikut adalah faktor-faktor yang mempengaruhi laju reaksi, kecuali ....
Konsentrasi
Suhu
Volume
Katalis
Luas permukaan zat
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Energi minimum yang digunakan agar suatu reaksi dapat berlangsung adalah ....
energi pereaksi
energi produk reaksi
energi aktivasi
energi kimia
energi kinetik
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Larutan asam nitrat (HNO3) dengan Mr = 63 mempunyai konsentrasi 1 molar, artinya
Dalam 1 liter pelarut terdapat 63 gram HNO3
Dalam 1 liter air mengandung 63 gram HNO3
Dalam 1 liter larutannya mengandung 63 gram HNO3
Sebanyak 63 gram HNO3 dilarutkan dalam 100 ml air
Sebanyak 63 gram HNO3 dilarutkan sampai 100 ml
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Molaritas asam nitrat pekat 63% dengan massa jenis 1,3 kg/liter adalah …. (Mr HNO3 = 63)
6,3 M
6,5 M
13 M
10 M
63 M
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