hukum hess
Quiz
•
Chemistry
•
11th Grade
•
Medium
Darman Mulis
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8 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui:
CS2(l) + 3O2 (g) CO2(g) + 2SO2(g) ∆H= -1077 kJ
H2(g) + O2 (g) H2O2(l) ∆H = -188 kJ
H2(g) + ½ O2 (g) H2O(l) ∆H = -286 kJ
Perubahan entalpi untuk reaksi
CS2(l) + 6H2O2(l)à CO2(g) + 6H2O(l) + 2SO2(g) adalah ........
+1.665 kJ
-1.665 kJ
+ 603 kJ
- 603 kJ
2.
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
3.
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
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
maka untuk persamaan reaksi ....
-110,5 Kj
-221 Kj
-55,25 Kj
+55,25 Kj
+110,5 Kj
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
maka untuk persamaan reaksi ....
-110,5 Kj
-221 Kj
-55,25 Kj
+55,25 Kj
+110,5 Kj
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
maka untuk persamaan reaksi ....
-110,5 Kj
-221 Kj
-55,25 Kj
+55,25 Kj
+110,5 Kj
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Di Ketahui Persamaan Reaksi :
maka harga H untuk reaksi
+ 45
- 45
+ 180
- 180
+ 360
8.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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
-524 kJ
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