KUIS 1_Pelatihan guru kimia
Quiz
•
Education, Chemistry
•
University - Professional Development
•
Practice Problem
•
Hard
Yuni Krisnandi Rere
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Dekomposisi 500 gram CaCO3 dan 1 kg CaCO3 dalam wadah tertutup bervolume sama pada T sama akan memberikan tekanan CO2 yang sama.
2.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Untuk reaksi: NH4Cl(s) ⇌ NH3(g) + HCl(g)
Tekanan total yang dihasilkan akibat dekomposisi padatan NH4Cl pada wadah tertutup 1 L adalah …
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Penambahan gas Ar pada sistem kesetimbangan As4O6(s) + 6C(s) ⇌ As4(s) + 6CO(g)
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Suatu reaksi P ⇌ Q memiliki hubungan konstanta kesetimbangan dengan T sebagai berikut: ln K = -1 - 1000/T dimana T adalah temperatur dalam Kelvin.
Nilai perubahan entalpi reaksi di atas adalah … J/mol.
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Kompleks CoCl42- berwarna biru, sedangkanCo(H2O)62+
berwarna pink. Kedua kompleks berkesetimbangan menurut reaksi: CoCl42-(aq) + 6H2O(l) ⇌ Co(H2O)62+(aq) + 4Cl-(aq)
Pada pemanasan, larutan kompleks cobalt berwarna biru, sedangkan pada pendinginan dalam bak es, warna larutan berubah menjadi pink. Maka reaksi di atas bersifat ….
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Untuk reaksi berikut 2NO2(g) → N2O4(g), laju penguraian NO2 adalah … laju pembentukan N2O4.
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Besarnya energi aktivasi reaksi B → A adalah .
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