
Quiz Kimter 11
Quiz
•
Chemistry
•
University
•
Practice Problem
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Medium
Mahirullah, Kimia
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi eksoterm adalah reaksi yang ...
Menyerap energi
Melepaskan energi ke lingkungan
Tidak memerlukan energi
Meningkatkan suhu sistem
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika 200 g air (c = 4,18 J/g°C) dipanaskan dari 20°C menjadi 70°C, maka kalor yang dibutuhkan adalah ...
167,2 J
41,8 kJ
418 J
167,2 kJ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entalpi pembentukan standar O2(g) adalah ...
-241,8 kJ/mol
0 kJ/mol
+241,8 kJ/mol
-74,8 kJ/mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan hukum Hess, perubahan entalpi reaksi hanya bergantung pada ...
Jalur reaksi
Kondisi lingkungan
Keadaan awal dan akhir sistem
Panjang waktu reaksi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gunakan data: CO2(g) → C(s)+O2(g) ΔH=+393,5kJ/mol, tentukan ΔH untuk reaksi pembakaran grafit menjadi CO2:
-393,5 kJ
+393,5 kJ
0 kJ
-283 kJ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diketahui ΔHf CH4=−74,8 kJ/mol, maka energi yang dilepaskan untuk membentuk 2 mol CH4 adalah ...
-149,6 kJ
+149,6 kJ
0 kJ
-74,8 kJ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diketahui ΔHc C2H6=−780 kJ/mol, maka energi yang dilepaskan Kalor yang dilepaskan dalam pembakaran 2 mol C2H6:
-1560 kJ
-890 kJ
-802 kJ
+1560 kJ
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