
Quiz Termokimia
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Dewi sari
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59 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi yang melepaskan kalor ke lingkungan disebut:
Reaksi endoterm
Reaksi eksoterm
Reaksi isoterm
Reaksi isobarik
Reaksi isokhorik
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam reaksi endoterm:
Suhu sistem menurun
Suhu lingkungan meningkat
Entalpi produk lebih rendah dari reaktan
Kalor mengalir dari sistem ke lingkungan
Kalor mengalir dari lingkungan ke sistem
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tanda negatif pada nilai ΔH menunjukkan bahwa reaksi ini:
Endoterm
Eksoterm
Isoterm
Reversibel
Irreversibel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah dari berikut ini yang merupakan contoh reaksi endoterm?
Pembakaran kayu
Netralisasi asam-basa
Fotosintesis
Perkaratan besi
Pembentukan air dari hidrogen dan oksigen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam reaksi eksoterm:
Entalpi produk lebih tinggi dari reaktan
Suhu sistem meningkat
Kalor mengalir dari lingkungan ke sistem
Energi potensial reaktan lebih rendah dari produk
Reaksi selalu spontan pada semua suhu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika entalpi pembentukan standar H₂O(l) adalah -285,8 kJ/mol, ini berarti:
Pembentukan 1 mol H₂O(l) dari unsur-unsurnya melepaskan 285,8 kJ
Pembentukan 1 mol H₂O(l) dari unsur-unsurnya menyerap 285,8 kJ
Penguraian 1 mol H₂O(l) menjadi unsur-unsurnya melepaskan 285,8 kJ
Penguraian 1 mol H₂O(l) menjadi unsur-unsurnya memerlukan 285,8 kJ
Tidak ada hubungan antara nilai tersebut dengan pembentukan atau penguraian H₂O(l)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang dimaksud dengan entalpi reaksi (ΔH)?
Jumlah total energi dalam sistem
Perubahan energi kinetik selama reaksi
Perubahan energi potensial selama reaksi
Kalor yang diserap atau dilepaskan pada tekanan tetap
Perubahan volume selama reaksi
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