
Hukum Hess
Authored by Yan Yan
Chemistry
Used 1+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dari siklus diatas perubahan entalpi reaksi :
CaO + H2O → Ca (OH)2 adalah....
-266 kJ
+266 kJ
+1706 kJ
-1706 kJ
-520 kJ
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Perhatikan diagram entalpi dari reaksi di samping.
Berdasarkan data-data pada diagram
tersebut, harga ΔH3 adalah...
-41 kJ
+41 kJ
+242 kJ
+525 kJ
-525 kJ
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
+1.665 kJ
-1.665 kJ
+ 603 kJ
- 603 kJ
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1. Gunakan hukum Hess untuk menentukan ΔH reaksi:
C(s) + 12O2(g) + 2H2(g)→ CH3OH(g)
Diketahui:
C(s) + 12 O2(g)→ CO(g) ΔH°1 = –111 kJ
CO(g) + 2H2(g)→ CH3OH(l) ΔH°2 = –128 kJ
-132 kJ
-239 kJ
-264 kJ
-458 kJ
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-110,5 Kj
-221 Kj
-55,25 Kj
+55,25 Kj
+110,5 Kj
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
+ 45
- 45
+ 180
- 180
+ 360
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui ΔH°f: CH4(g) =–75 kJ mol–1; CO2(g) =–394kJ mol–1; H2O() =–286 kJ mol–1; C2H4(g) = 52 kJ mol–1;SO2(g) =–297 kJ mol–1; H2S(g) = 21 kJ mol–1.
Hitung ∆H° untuk reaksi berikut!
CH4(g) + 2O2(g) →CO2(g) + 2H2O(l)
-1041 kJ
-1542 kJ
-2432 kJ
-2643 kJ
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