TERMOKIMIA
Quiz
•
Chemistry
•
2nd Grade
•
Hard
Umi Oktaviani
Used 11+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Suatu campuran pereaksi di dalam tabung reaksi meyebabkan tabung tersebut menjadi panas jika dipegang. Penyataan yang tepat mengenai hal tersebut adalah….
Entalpi pereaksi bertambah
Entalpi peraksi berkurang
Entalpi pereaksi dan hasil reaksi bertambah
Entalpi pereaksi lebih besar daripada entalpi hasil reaksi
Entalpi hasil reaksi lebih besar daripada entalpi pereaksi
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Perubahan entalpi pada penguraian 1 mol gas NH3 menjadi unsur-unsurnya adalah….
-92 kJ
-46 kJ
+46 kJ
+ 184 kJ
+ 92 kJ
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Pada suatu percobaan, 3 L air dipanaskan sehingga suhu air naik dari 25° C menjadi 72°C Jika diketahui massa jenis air = 1g mL‾¹, dan kalor jenis air = 4,2 J/g K, Hasil ∆H reaksi pemanasan tersebut adalah.…
592,2 kJ
5922 kJ
59,22 kJ
5,922 kJ
59220 kJ
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Yang di maksud dengan perubahan entalpi ….
Perubahan suasana
Perubahan kalor
Perubahan hari
Perubahan keadaan
Perubahan suhu
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Hubungan hukum hess pada perhitungan reaksi ∆H adalah ….
Berguna untuk melancarkan segela aktifitas reaksi
Membantu kalor berjalan saat reaksi berlangsunug
Karna kalor yang berlangsung sangat berguna makanya digunakan hukum Hess
Hukum ini sangat berguna karena kenyataannya tidak semua reaksi dapat ditentukan kalor reaksinya secara eskperimen
Sangat berguna bagi setiap atom-atom yang ada di alam semesta
6.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
Jika suatu sendok serbuk seng dimasukkan ke dalam gas kimia yang berisi larutan HCl,ternyata terbentuk gelembung gas dan dasar tabung berasa panas, reaksi ini dapat digolongkan ..
7.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
Pada pemanasan 500 g air bersuhu 30°C diperlukan kalor 90 Kj, jika diketahui kalor jenis air sebesar 4,5 J g‾¹°C‾¹, suhu air setelah pemanasan adalah….
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