Siapkah penemu hukum hess?
HUKUM HESS

Quiz
•
Chemistry, Mathematics, Science
•
12th Grade - University
•
Medium
Uripatmimindayani Uripatmimindayani
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Germain Henri Hess
Leon Hess
Antoinie Lavoisier
Dalton
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bunyi hukum hess mengatakan kalor yang dibebaskan atau diperlukan pada suatu reaksi tidak bergantung pada jalannya reaksi,tetapi (……..)
Jawaban yang tepat untuk melengkapi pernyataan diatas adalah….
Hanya bergantung pada keadaan awal saja
Hanya bergantung pada keadaan awal dan akhir reaksi
Hanya bergantung pada saat reaksi berlangsung lama
Hanya bergantung pada saat reaksi berlangsung cepat
Hanya bergantung pada keadaan normal saat reaksi berlangsung
3.
MULTIPLE CHOICE QUESTION
30 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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hubungan yang benar dari diagram energi tersebut adalah ….
5.
MULTIPLE CHOICE QUESTION
30 sec • 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
6.
MULTIPLE CHOICE QUESTION
30 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
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan diagram diatas, hubungan ∆H1, ∆H2, ∆H3 yang benar adalah . . . . .
∆H2 = ∆H1 - ∆H3
∆H2 = ∆H1 + ∆H3
∆H3 = ∆H1 - ∆H2
∆H3 = ∆H1 + ∆H2
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