
Termokimia
Authored by Gryshelda Nabila
Chemistry
11th Grade
Used 18+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
1. Persamaan reaksi pembakaran gas etana sebagai berikut. Pernyataan yang tepat mengenai reaksi tersebut adalah…
Entalpi produk lebih besar daripada entalpi pereaksi.
Pembakaran gas etana merupakan reaksi endoterm.
Pembakaran gas etana memerlukan kalor sebesar 84,7 kJ.
Pada reaksi pembakaran gas etana suhu lingkungan meningkat.
Pembakaran gasetana disertai dengan penyerapan kalor dari lingkungan
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Reaksi menyerap kalor sebesar 16,0 kJ
Reaksi menyerap kalor sebesar 8,0 kJ
Reaksi melepas kalor sebesar 8,0 kJ
Reaksi melepas kalor sebesar 16,0 kJ
Reaksi melepas kalor sebesar 80 kJ
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Reaksi penguraian perak nitrat (AgNO3) pada keadaan standar membutuhkan kalor sebesar 90 kJ. Persamaan termokimianya yang tepat adalah ….
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sebanyak 250 mL larutan H2SO4 2 M dan 250 mL larutan NaOH 4 M dimasukkan ke dalam kalorimeter yang memiliki kapasitas kalor 800 J/◦C. suhu awal masing-masing larutan adalah 25◦C. Setelah kalorimeter ditutup dan larutan diaduk, ternyata suhu campuran menjadi 29◦C. Jika kalor jenis larutan = 4,2 J/g◦C dan massa jenis larutan = 1 g/cm3, harga perubahan entalpi reaksi netralisasi adalah …
-2,90 kJ/mol
-5,80 kJ/mol
-11,6 kJ/mol
-23,2 kJ/mol
-46,4 kJ/mol
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
-1.551 kJ
-1.665 kJ
+1.551 kJ
+1.665 kJ
+3.921 kJ
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
38 kJ
76 kJ
152 kJ
304 kJ
608 kJ
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Pembentukan standar gas HCl melepaskan kalor sebesar 184,6 kJ
Pembentukan standar gas HCl memerlukan kalor sebesar 184,6 kJ.
Pembentukan standar gas HCl memerlukan kalor sebesar 92,3 kJ.
Untuk membentuk 18,25 g gas HCl dilepaskan kalor sebesar 46,15 kJ.
Untuk membentuk 18,25 g gas HCl diperlukan kalor sebesar 46,15 kJ.
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