
Perubahan Entalpi Berdasarkan Entalpi Pembentukan Standar
Quiz
•
Chemistry
•
11th Grade
•
Hard
Nayla undefined
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bagaimana cara menghitung perubahan entalpi reaksi berdasarkan entalpi pembentukan standar?
Dengan membagi entalpi pembentukan produk dengan entalpi pembentukan reaktan.
Dengan mengalikan entalpi pembentukan produk dengan entalpi pembentukan reaktan.
Dengan menambah entalpi pembentukan produk dengan entalpi pembentukan reaktan.
Dengan mengurangi entalpi pembentukan produk dengan entalpi pembentukan reaktan.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan persamaan reaksi ini:
CO(g) + 2H2(g) → CH3OH(l)
Diketahui:
∆H0f CO = -111 kJ/mol
∆H0f H2 = 0
∆H0f CH3OH = -239 kJ/mol
Rumus penentuan ∆H berdasarkan data di atas adalah....
∆H = [∆H0f CO + ∆H0f H2] - [∆H0f CH3OOH]
∆H = [∆H0f CH3OOH] + [(∆H0f CO + (2 x ∆H0f H2)]
∆H = [∆H0f CH3OOH] – [∆H0f CO + ∆H0f H2]
∆H = [∆H0f CH3OOH] – [(∆H0f CO + (2 x ∆H0f H2)]
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan persamaan reaksi ini:
CO(g) + 2H2(g) → CH3OH(l)
Diketahui:
∆H0f CO = -111 kJ/mol
∆H0f H2 = 0
∆H0f CH3OH = -239 kJ/mol
-128
-239
+350
+128
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tentukan rumusan perubahan entalpi reaksi berikut:
2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + 2 H2O (g)
ΔHo = [(4 x ΔHfo CO2) + (2 x ΔHfo H2O)] - [(2 x ΔHfo C2H2) + (5 x ΔHfo O2)]
ΔHo = [ΔHfo CO2 + ΔHfo H2O] - [ΔHfo C2H2 + ΔHfo O2]
ΔHo = [ΔHfo CO2 + ΔHfo H2O] + [ΔHfo C2H2 + ΔHfo O2]
ΔHo = [(2 x ΔHfo C2H2) + (5 x ΔHfo O2)] - [(4 x ΔHfo CO2) + (2 x ΔHfo H2O)]
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apa yang dimaksud dengan entalpi pembentukan standar ?
Entalpi yang terjadi saat satu mol senyawa terurai menjadi unsur-unsur pada tekanan 1 atm dan suhu 25°C
Entalpi yang terjadi saat dua mol senyawa terbentuk dari unsur-unsur dalam keadaan standar (tekanan 1 atm dan suhu 25°C)
Entalpi yang terjadi saat satu mol senyawa terbentuk dari unsur-unsur dalam keadaan standar (tekanan 1 atm dan suhu 25°C)
Entalpi yang terjadi saat satu mol senyawa terbentuk dari unsur-unsur dalam keadaan non-standar
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan termokimia tersebut menunjukkan....
Perubahan entalpi penguraian standar
Perubahan entalpi pembentukan standar
Perubahan entalpi pembakaran standar
Perubahan entalpi penguapan standar
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jumlah kalor yang diperlukan atau dibebaskan untuk proses pembakaran 1 mol senyawa dari unsur-unsurnya pada keadaan standar disebut....
Perubahan entalpi pembentukan standar
Perubahan entalpi penguraian standar
Perubahan entalpi pembakaran standar
Perubahan entalpi penguapan standar
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