
REMIDI TERMOKIMIA
Authored by Diansari Fajriana
Chemistry
11th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Berikut yang termasuk perubahan entalpi penguraian pada termokimia adalah…
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Campuran pereaksi di dalam tabung reaksi mengakibatkan tabung tersebut menjadi panas jika dipegang. Penyataan yang tepat terkait hal tersebut adalah….
Entalpi pereaksi tetap
Entalpi peraksi berkurang
Entalpi pereaksi dan hasil reaksi bertambah
Entalpi pereaksi lebih besar dibanding entalpi hasil reaksi
Entalpi hasil reaksi lebih besar dibanding entalpi pereaksi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan berikut ini yang benar tentang reaksi endoterm adalah….
Entalpi awal lebih besar dibanding entalpi akhir dan ΔH > 0
Entalpi awal lebih kecil dibanding entalpi akhir dan ΔH > 0
Entalpi awal lebih besar dibanding entalpi akhir dan ΔH < 0
Entalpi awal lebih kecil dibanding entalpi akhir dan ΔH < 0
Entalpi awal sama dengan entalpi akhir dan ΔH = 0
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Jika ∆hc°C = -393,5 kj mol‾¹ , berapa kalor yang terjadi pada pembakaran 1 kg arang, apabila arang dianggap mengandung 48% karbon dan Ar C = 12?
- 470 kj
- 740 kj
+ 470 kj
+ 740 kj
+ 1040 kj
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika sepotong logam Barium direaksikan dengan Asam klorida encer pada sistem terbuka dengan reaksi:
Ba+2HCl→ BaCl2 + H2
Pada reaksi tersebut sistem melepas kalor sebesar 150 kj dan menghasilkan gas yang akan menyebabkan terjadinya perubahan volume, sistem ini juga melakukan kerja sebesar 45 kj. Perubahan energi dalam dalam proses tersebut adalah….
-195 kj
+185 kj
-162,8 kj
+195 kj
+162,7 kj
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