Perhatikan diagram reaksi termokimia tersebut. Jika diketahui nilai ΔH3 dan ΔH2 masing-masing adalah -286 kJ/mol dan -108 kJ/mol. Maka nilai ΔH1 adalah ....
TERMOKIMIA Pra UAS

Quiz
•
Chemistry
•
11th Grade
•
Medium
Zia Fatihah
Used 4+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
-128 kJ/mol
168 kJ/mol
-178 kJ/mol
182 kJ/mol
2.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Tentukanlah nilai ΔH reaksi pada gambar tersebut!
-2486,3
-2381,7
+2381,7
+2486,3
3.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Perhatikan data energi ikatan berikut ini:
Ikatan C - C : 345 kJ/mol
Ikatan C = C : 609 kJ/mol
Ikatan H - H : -100 kJ/mol
Tentukan besarnya energi ikatan C - H jika diketahui reaksi:
C3H6 + H2 → C3H8 ΔH = -248 kJ/mol
-412 kJ/mol
+412 kJ/mol
-206 kJ/mol
+206 kJ/mol
4.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Diketahui :
H2O(l) → H2O(g) ΔH = + 40 kJ/mol
berapakah kalor yang diperlukan untuk penguapan 45 gram H2O (Ar H = 1, Ar O = 16)
10 kJ
180 kJ
100 kJ
1800 kJ
5.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Pernyataan yang tidak sesuai dengan reaksi eksoterm adalah ....
1. mengalami penurunan suhu
2. terjadi perpindahan kalor dari lingkungan ke sistem
3. entalpi sistem naik
4. lingkungan menyerap kalor dari sistem
1,2,3 benar
1 dan 3 benar
2 dan 4 benar
4 saja benar
semua benar
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Perhatikan gambar berikut! Percobaan yang mengalami perpindahan kalor dari lingkungan ke sistem adalah gambar nomor ....
1 dan 2
2 dan 5
3 dan 4
1 dan 4
3 dan 5
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