Ke dalam tabung reaksi yang berisi air dilarutkan NaOH padat. Ternyata pada tabung reaksi terasa panas, yang dimaksud dengan sistem pada peristiwa itu adalah . . . .
TES TERMOKIMIA UNIT IBL KIMIA SMA KELAS XI 2018

Quiz
•
Chemistry
•
1st Grade - University
•
Hard
Aritta Megadomani
Used 102+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
NaOH
Air
NaOH dan Air
NaOH, Air dan Tabung Reaksi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pelarutan ammonia nitrat di dalam air merupakan perubahan endoterm. Grafik mana di bawah ini yang menunjukkan perubahan tersebut?
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
ini merupakan harga-harga entalpi.
Berdasarkan pilihan tersebut, yang merupakan ciri reaksi eksoterm adalah….
I dan III
II dan III
II dan IV
I dan II
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Manakah yang termasuk reaksi yang terjadi perubahan entalpi pembentukan, yaitu kondisi kalor dilepaskan oleh sistem pada reaksi pembentukan 1 mol senyawa dari unsur-unsurnya....
NaOH(s) + HCl(aq) → NaOH(aq) + H2O(l) ∆Hn = - 57,7 kj/mol
C(s) + O2(g) → CO2(g) ∆Hf = -395,2 kj/mol
C2H2(g)+ O2(g) → 2CO2(g)+ H2O(aq) ∆Hc = -1298 kj/mol
AlBr3(aq) → Al (s) + 1½Br2 (g) ∆Hd = +511 kj/mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika data entalpi pembentukan standar:
C3H8(g) = –104 kJ/mol;
CO2(g) = –394 kJ/mol
H2O(l) = –286 kJ/mol
Harga ΔH untuk pembakaran propana:
C3H8(g)+5O2(g) ---> 3CO2 (g) + 4H2O(l) adalah......
–1.034 kJ
–1.121 kJ
–1.134 kJ
-2.222 kJ
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui harga ∆Hf0
C2H6 = –84,7 kJ mol–1,
CO2(g) = –393,5 kJ mol–1
H2O(l) = –285,8 kJ mol–1
∆H reaksi pembakaran C2H6 adalah....
+1559,7 kJ.
- 1559,7 kJ
+ 84,7 kJ
– 84,7 kJ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika larutan NaHCO3 (baking soda) bereaksi dengan asam klorida menghasilkan larutan natriumklorida, air, dan gas karbondioksida. Reaksi menyerap kalor sebesar 11,8 kJ pada tekanan tetap untuk setiap mol baking soda. Maka persamaan termokimia untuk reaksi tersebut adalah....
NaHCO3(aq) + HCl(aq)→ NaCl(aq) + H2O(l) + CO2(g) ΔH= +11,8 kJ
NaHCO3(aq) + HCl(aq)→ NaCl(aq) + H2O(l) + CO2(g) ΔH= -11,8 kJ
NaCl(aq) + H2O(l)+CO2(g) → NaHCO3(aq) + HCl(aq) ΔH= -11,8 kJ
NaCl(aq) + H2O(l)+CO2(g) → NaHCO3(aq) + HCl(aq) ΔH= +11,8 kJ
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