Suatu campuran pereaksi di dalam tabung reaksi meyebabkan tabung tersebut menjadi panas jika dipegang. Penyataan yang tepat mengenai hal tersebut adalah...
Termokimia

Quiz
•
Science
•
1st - 3rd Grade
•
Hard
Ika Wulandari
Used 3+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entalpi pereaksi bertambah
Entalpi peraksi berkurang
Entalpi pereaksi dan hasil reaksi bertambah
Entalpi pereaksi lebih besar daripada entalpi hasil reaksi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pasangan persamaan reaksi yang merupakan ΔHf°, ΔHd° , dan ΔHc° adalah ….
1, 3, dan 5
1, 2, dan 4
1, 2, dan 3
3, 4, dan 5
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kalor pembentukan adalah kalor yang dilepas atau dibutuhkan apabila 1 mol senyawa terbentuk dari ….
Ion positif dan negatif
Unsur-unsurnya
Senyawa yang lebih sederhana
Atom-atomnya
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan reaksi berikut yang menyatakan energi ikatan H – Cl adalah…
2HCl(aq) → H2(g) + Cl2(g)
HCl(aq) → HCl(g)
HCl(g) → ½H2(g) + ½Cl2(g)
HCl(g) → H(g) + Cl(g)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
N2(g) + 3H2(g) → 2NH3(g) ΔH = -92kJ
Perubahan entalpi pada penguraian 1 mol gas NH3 menjadi unsur-unsurnya adalah….
-92 kJ
+46 kJ
-184 kJ
+92 kJ
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