
SOAL Termokimia
Authored by Yenti Floriska
Chemistry, Science
1st Grade
NGSS covered
Used 754+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Sistem yang memungkinkan terjadinya perpindahan energi dan massa disebut...
Sistem tertutup
Sistem terbuka
Sistem terisolasi
Sistem menyempit
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 2 mol gas hidrogen jika direaksikan dengan 1 mol gas oksigen akan terbentuk uap air yang membutuhkan kalor sebesar 484 kJ. Persamaan termokimianya adalah … .
H2(g) + ½ O2(g) --> H2O(g) ΔH = 484 kJ
2 H2(g) + O2(g) --> 2 H2O(g) ΔH = 484 kJ
2 H2(g) + O2(g) --> 2 H2O(g) ΔH = –484 kJ
2 H2O(g) --> 2 H2(g) + O2(g) ΔH = –484 kJ
H2O(g) --> H2(g) + ½ O2(g) ΔH = 484 kJ
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Entalpi pembentukan AgNO3 = -23 kkal/mol. Pernyataan ini dapat ditulis sebagai ...
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data energi ikatan rata rata :
C=C = 609 kJ/mol
C-Cl = 326 kJ/mol
C-H = 412 kJ/mol
C-C = 345 kJ/mol
H-Cl = 426 kJ/mol
Besarnya entalpi reaksi
CH2=CH2 + HCl → CH3CH2Cl
adalah,......
-312 kJ/mol
-48 kJ/mol
48 kJ/mol
100 kJ/mol
312 kJ/mol
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui persamaan termokimia pembentukan Fe2O3 dan CO2:
2Fe(s) + 3/2O2(g) Fe2O3(s) H = - 822 kJ/mol
C(s) + 1/2O2(g) CO(g) H = -110 kJ/mol
Berapakah perubahan entalpi untuk reaksi berikut ini?
Fe2O3(s) + 3C(g) 2Fe(s) + 3CO(g) H = ....kJ/mol
+ 712
+492
-492
-712
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan persamaan reaksi termokimia di bawah ini:
1. ½ N2 (g) + ½ O2 (g) → NO (g) ΔH = +kJ/mol
2. NO2 (g) → ½ N2 (g) + O2 (g) ΔH = −kJ/mol
3. CO2 (g) → C (s) + O2 (g) ΔH = +kJ/mol
4. C2H5OH + 3O2 → 2CO2 + 3H2O ΔH = −kJ/mol
5. Na (s) + ½ Cl2 (g) → NaCl ΔH = −kJ/mol
Pasangan persamaan reaksi yang merupakan ΔHfo, ΔHdo, dan ΔHco adalah ….
(3), (4), dan (5)
(2), (4), dan (5)
(1), (3), dan (5)
(1), (2), dan (4)
(1), (2), dan (3)
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Bila data entalpi pembentukan standar:
C3H8 (g) = – 104 kJ mol–1
CO2 (g) = – 394 kJ mol–1
H2O (g) = – 286 kJ mol–1
maka harga ΔH reaksi :
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l) adalah …
–1.024 kJ
–1.121 kJ
–1.134 kJ
–2.222 kJ
–2.232 kJ
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
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