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Authored by Arief Budiman
Chemistry
11th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ciri-ciri reaksi eksoterm adalah … .
lingkungan menyerap kalor dari sistem
sistem menyerap kalor dari lingkungan
sistem dan lingkungan memiliki kalor sama
kalor sistem dan lingkungan jika dijumlahkan sama dengan nol
pada akhir reaksi, kalor lingkungan selalu lebih kecil dari kalor sistem
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 2 mol gas hidrogen jika direaksikan dengan 1 mol gas oksigen akan terbentuk uap air yang membutuhkan kalor sebesar 484 kJ. Persamaan termokimianya adalah … .
H2(g) + ½ O2(g) --> H2O(g) ΔH = 484 kJ
2 H2(g) + O2(g) --> 2 H2O(g) ΔH = 484 kJ
2 H2(g) + O2(g) --> 2 H2O(g) ΔH = –484 kJ
2 H2O(g) --> 2 H2(g) + O2(g) ΔH = –484 kJ
H2O(g) --> H2(g) + ½ O2(g) ΔH = 484 kJ
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Pernyataan yang benar tentang reaksi endoterm yaitu . . . .
Sistem melepaskan kalor
∆H < 0
Entalpi produk lebih kecil daripada entalpi reaktan
Entalpi sistem bertambah
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan reaksi termokimia berikut yang merupakan reaksi penguraian standar adalah ...
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Entalpi pembentukan AgNO3 = -23 kkal/mol. Pernyataan ini dapat ditulis sebagai ...
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui reaksi: 2HCl(g) --> H2(g) + Cl2(g) DH = +184 kJ, maka perubahan entalpi pada pembentukan 1 mol HCl adalah …
+ 230 kJ
+ 184 kJ
+ 92 kJ
– 92 kJ
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut ini pernyataan yang benar mengenai proses endoterm adalah …
entalpi sistem berkurang dan DH bernilai positif
entalpi sistem berkurang dan DH bernilai negatif
entalpi sistem bertambah dan DH bernilai positif
entalpi lingkungan berkurang dan DH bernilai negative
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