Kuis Singkat Jenis Entalpi Reaksi

Quiz
•
Chemistry
•
11th Grade
•
Hard
Jefri Soni
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Apa yang dimaksud dengan entalpi pembentukan standar?
Perubahan entalpi saat satu mol unsur-unsur terbentuk menjadi satu mol senyawa di keadaan standar
Perubahan entalpi saat satu mol senyawa diuraikan menjadi unsur-unsurnya di keadaan standar
Perubahan entalpi saat satu mol unsur-unsur terurai menjadi satu mol senyawa di keadaan standar
Perubahan entalpi saat satu mol senyawa terbentuk dari unsur-unsurnya di keadaan standar
2.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Diketahui perubahan entalpi pembentukan standar Na2SO4 (s) sebesar – 1.267 kJ.
Persamaan termokimia yang tepat untuk pernyataan di atas adalah ….
Na2SO4 (s) → 2 Na (s) + S (s) + 2 O2 (g) ΔH = – 1.267 kJ
Na2SO4 (s) → 2 Na+ (aq) + SO4– 2 (aq) ΔH = – 1.267 kJ
2 Na (s) + S (s) + 2 O2 (g) → Na2SO4 (s) ΔH = – 1.267 kJ
2 Na (s) + SO2 (g) + O2 (g) → Na2SO4 (s) ΔH = – 1.267 kJ
3.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Persamaan kimia berikut yang tidak sesuai dengan perubahan entalpi pembentukannya adalah ...
N2(g) + 3H2(g) -> 2NH3(g)
Perubahan entalpi pembentukan amonia
H2(g) + 1/2O2(g) -> H2O(l)
Perubahan entalpi pembentukan air
S(s) + O2(g) -> SO2(g)
Perubahan entalpi pembentukan dioksida sulfur
C(s) + O2(g) -> CO2(g)
Perubahan entalpi pembentukan dioksida karbon
4.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
C3H8 + O2 --> CO2 + H2O ΔH0C = -189 kJ
Pada reaksi tersebut, terjadi reaksi
Pembakaran dan Endoterm
Pembakaran dan Eksoterm
Pembentukan dan Eksoterm
Pembentukan dan Endoterm
5.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Jika diketahui:
N2 (g) + 3 H2 (g) ⇌ 2 NH3 𝛥H = – 92 kJ
Besarnya perubahan entalpi penguraian standar gas NH3 adalah -46 kJ
BENAR
SALAH
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