
TERMOKIMIA 1
Authored by zulaichah kuswatiningsih
Chemistry
11th Grade
NGSS covered
Used 70+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Grafik tersebut merupakan grafik dari ....
Reaksi Eksoterm
Reaksi Eksoterm dan endoterm
Reaksi Endoterm
Tidak reaksi eksoterm dan endoterm
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari beberapa persamaan termokimia berikut ini, manakah yang termasuk dalam perubahan entalpi pembakaran ?
Na(s) + ½ Cl2(g) -> NaCl(s) ∆H = -401,9 kj.mol-1
2C(s) + H2(g) -> C2H2(g) – 227 kj.mol-1
NH3(g) -> ½ N2(g) + 3/2 H2(g) ∆H = +46,11 kj.mol-1
C2H6(g) + O2(g) -> 2CO2(g) +3H2O ∆H = -2803 kj.mol-1
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Persamaan termokimia berikut ini merupakan reaksi yang memiliki perubahan entalpi penguraian gas amonia:
NH3(g) -> ½ N2(g) + 3/2 H2(g) ∆H = +46,11 kj.mol-1
Jika diminta reaksi termokimia dari pembentukan 2 mol gas amonia, maka berapakah nilai dari perubahan entalpi pembentukannya ?
∆H0f = -46,11 kj.mol-1
∆H0f = +92,22 kj.mol-1
∆H0f = -92,22 kj.mol-1
∆H0f = +23,05 kj.mol-1
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan reaksi pembentukan air berikut ini :
2H2(g) + O2(g) -> 2H2O(l) ∆Hf = -472 kj/mol
Tentukan perubahan entalpi reaksi penguraian 1 mol H2O !
+ 236 kj/mol
- 236 kj/mol
+472 kj/mol
- 944 kj/mol
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut ini yang merupakan jenis-jenis dari perubahan entalpi persamaan termokimia, kecuali...
Perubahan entalpi pembentukan standar
Perubahan entalpi pelarutan standar
Perubahan entalpi penguapan standar
Perubahan entalpi pembekuan standar
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apakah arti dari persamaan termokimia berikut ini :
Ag(s) + ½ Cl2(g) -> AgCl(s) + 127 kj/mol
Reaksi pembentukan perak klorida
Reaksi pembentukan klorida yang melepaskan energi sebesar 127 kj/mok
Reaksi pembentukan standar tiap 1 mol Perak Klorida yang membutuhkan kalor sebesar 127 kj/mol
Reaksi pembentukan standar tiap 1 mol Perak Klorida yang melepaskan kalor sebesar 127 kj/mol
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dari pilihan berikut ini, manakah yang bukan merupakan ciri-ciri dari reaksi endoterm ?
Terjadi perpindahan dari sistem ke lingkungan
Memiliki nilai ∆H negatif
H 1 > H 2
entalpi sistim bertambah
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