hukum hess dan perubahan entalpi

Quiz
•
Chemistry
•
11th Grade
•
Medium
Standards-aligned
Darman Mulis
Used 72+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui reaksi :
Maka, Perubahan entalpi pada penguraian 1 mol gas NH3 menjadi unsur-unsurnya adalah
+ 184 kJ
+ 92 kJ
-92 kJ
-46 kJ
+46 kJ
2.
MULTIPLE CHOICE QUESTION
2 mins • 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
3 mins • 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
2 mins • 1 pt
Diantara perubahan entalpi reaksi berikut, manakah yang merupakan perubahan entalpi pembentukan standar gas HI ….
H2(g) + I2(g) -> 2HI(g)
H2(g) + I2(s) -> 2HI(g)
1/2H2 (g) + 1/2O2 (g) -> HI(g)
1/2H2 (g) + 1/2O2 (l) -> HI(g)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hubungan yang benar dari diagram energi tersebut adalah ….
6.
MULTIPLE CHOICE QUESTION
5 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
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
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