LATIHAN PAS KIMIA XI

Quiz
•
Chemistry
•
11th Grade
•
Medium
Standards-aligned
SITI JULAEHA
Used 2+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada proses pembuatan tape, bahan yang telah disiapkan ditambahkan sejumlah ragi, kemudian bahan-bahan tersebut diperam dalam tempat tertutup dan dibiarkan. Proses fermentasi berlangsung menurut persamaan:
C6H12O6(s) ⟶enzim 2C2H5OH(l) +2 CO2(g)
Seiring berjalannya waktu, temperatur di sekitar sistem menjadi lebih tinggi dibandingkan suhu kamar. Hal ini terjadi karena proses fermentasi termasuk reaksi...
eksoterm, karena entalpi sistem bertambah
eksoterm, karena entalpi sistem berkurang
eksoterm, karena entalpi lingkungan berkurang
endoterm, karena entalpi sistem bertambah
endoterm, karena entalpi sistem berkurang
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut ini yang merupakan reaksi pembentukan standar adalah ....
Ca(s) + O(g) + H(g) ------> Ca(OH)2 (s) ΔH = -a kal
Ca2+(s) + O2 (g) + H2(g) ------> Ca(OH)2 (s) ΔH = -a kal
Ca(s) + O2 (g) + H2(g) ------> Ca(OH)2 (s) ΔH = -a kal
Ca(s) + 2O2(g) + 2H(g) ------> Ca(OH)2 (s) ΔH = -a kal
2Ca(s) + O2(g) + H2(g) ------> 2Ca(OH)2 (s) ΔH = -a kal
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika kalor jenis air adalah 4,18 J.g-1.0C maka untuk memanaskan 50 gram air dari suhu 250C menjadi 750C memerlukan kalor sebesar....
8,250 kJ
9,725 kJ
10,450 kJ
11,725 kJ
12,45 kJ
Tags
NGSS.HS-PS3-1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui :
C(s) + O2 (g) → CO2 (g) ΔH = -393 kJ
2CO(s) + O2 (g) → 2CO2 (g) ΔH = -568 kJ
Berdasarkan data tersebut ΔHf0 CO adalah....
-786 kJ
-568 kJ
-393 kJ
-284 kJ
-109 kJ
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui:
ΔHf0 H2O(g) = -242 kJ/mol
ΔHf0 CO2(g) = -394 kJ/mol
ΔHf0 CH4(g) = -84 kJ/mol
ΔHf0 O2(g) = 0 kJ/mol
Perubahan entalpi reaksi berikut
CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O(g)
adalah....
-720 kJ
-887 kJ
-84 kJ
-397 kJ
-794 kJ
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika energi ikatan H-H : 431 kJ, O=O : 489 kJ dan H-O : 460 kJ.
Entalpi reaksi : H2 (g) + ½ O2 (g) → H2O(g) adalah….
-920 kJ
-460 kJ
-244,50 kJ
-122,25 kJ
-61,13 kJ
Tags
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Terjadinya reaksi endoterm ditunjukkan pada gambar nomor…
1 dan 3
2 dan 4
1 dan 4
1 dan 2
3 dan 4
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