
UH termokimia
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
anita sulistyorini S.Si
Used 9+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Jika 1 sendok makan kristal dilarutkan dalam 300 ml air ternyata pada dasar tabung terasa panas. Dari pengamatan tersebut reaksi di atas termasuk reaksi golongan
Eksoterm
Ekosistem
Endoterm
Ecoprint
Pelarutan
2.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Pernyataan yang benar tentang reaksi endoterm adalah..
entalpi awal lebih besar daripada entalpi akhir dan ΔH > 0
entalpi awal lebih besar daripada entalpi akhir dan ΔH < 0
entalpi awal lebih kecil daripada entalpi akhir dan ΔH > 0
entalpi awal lebih kecil daripada entalpi akhir dan ΔH < 0
entalpi awal sama besar daripada entalpi akhir dan ΔH = 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
1 sendok kristal pupuk urea dilarutkan kedalam tabung reaksi yang telah berisi air, saat setelah semuanya larut tabung reaksi terasa dingin. Reaksi ini dapat digolongkan
Ekosistem, energi berada tetap dilingkungannya
Endoterm, energi berpindah dari sistem ke lingkungan
Endoterm, energi berpindah dari lingkungan ke sistem
Eksoterm, energi berpindah dari sistem ke lingkungan
Eksoterm, energi berpindah dari lingkungan ke sistem
4.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
pada gambar termasuk merupakan golongan reaksi...
Endoterm
Eksoterm
Ekosistem
Endoterma
Koheren
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
9
18
36
72
144
6.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Sebanyak 1,00 gram sampel n-heksana (C6H14 ) mengalami pembakaran sempurna dengan O2 berlebih dalam sebuah kalorimeter bom meningkat dari 22,64 oC menjadi 29,30 oC. Kapasitas kalor kalorimeter adalah 4,04 kJ/oC dan kaloar jenis air adalah 4,184 J/g.oC. Tentukan Perubahan entalpi yang terjadi.. (Ar H = 1, Ar C = 12)
- 9,96 x 103 kJ/mol
- 4,52 x 103 kJ/mol
- 1,15 x 103 kJ/mol
- 7,40 x 103 kJ/mol
- 5,92 x 103 kJ/mol
7.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
280 kJ
- 300 kJ
-321 kJ
-383,8 kJ
-419 kJ
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