TERMOKIMIA 2
Quiz
•
Chemistry
•
11th Grade
•
Hard
khairunnisa nisa
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Perhatikan reaksi berikut.
1) 2S(g) + O2(g) -> 2SO2(g)
2) H2(g) + I2(g) -> 2HI(g)
3) 2NH3(g) -> N2(g) + 3H2(g)
Reaksi (1), (2), dan (3) berturut-turut merupakan reaksi ….
Pembakaran, peruraian, dan pembentukan
Penetralan, peruraian, dan pembakaran
Pembakaran, pembentukan, dan peruraian
Pembentukan, pembakaran, dan peruraian
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika diketahui kalor pembentukan:
H2(g) + Cl2(g) -> 2HCl(g) adalah 185 kJ, maka besarnya kalor peruraian HCl adalah ….
-92,5 kJ
-185 kJ
+185 kJ
+92,5 kJ
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Perubahan entalpi pembentukan gas CO2 adalah -393,5 kJ/mol. Persamaan termokimianya adalah ….
CO2(g) -> C(s) + O2(g) =-393,5 kJ/mol
C(s) + 2O(g) -> CO2(g) =-393,5 kJ/mol
C(s) + O2(g) -> CO2(g) =-393,5 kJ/mol
CO(g) + O2(g) -> CO2(g) =-393,5 kJ/mol
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui persamaan termokimia:
2CO(g) + O2(g) -> 2CO2(g) = -573,72 kJ
(1) reaksi = -573,72 kJ
(2) pembakaran CO = -286,86 kJ
(3) pembentukan CO2 = +573,72 kJ
(4) penguraian CO2 = -286,86 kJ
Pernyataan yang benar adalah….
(1) dan (2)
(3) dan (4)
(2) dan (3)
(1) dan (4)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Harga perubahan entalpi pembentukan 1 mol gas SO3 adalah ….
-790 kJ
-395 kJ
-396 kJ
+790 kJ
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Reaksi CO(g) + O2 CO2(g) memiliki = -283 kJ. Nilai tersebut merupakan ….
Entalpi
pembakaran CO2
Entalpi pembakaran CO
Entalpi penguraian CO2
Entalpi reaksi
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Untuk memanaskan 100 gram air diperlukan kalor sebesar 29.400 J. Jika kalor jenis air sebesar 4,2 J/g C , maka kenaikan suhu sebesar ….
40
50
60
70
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