
Post Test Termokimia
Flashcard
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Apa yang dimaksud dengan reaksi endoterm?
Back
Reaksi endoterm adalah reaksi kimia yang menyerap energi dari lingkungan, sehingga entalpi produk lebih besar daripada entalpi reaktan (ΔH > 0).
2.
FLASHCARD QUESTION
Front
Apa yang terjadi pada entalpi dalam reaksi endoterm?
Back
Entalpi awal lebih kecil dari entalpi akhir, sehingga ΔH > 0.
3.
FLASHCARD QUESTION
Front
Bagaimana suhu mempengaruhi laju reaksi endoterm?
Back
Suhu yang lebih tinggi biasanya akan meningkatkan laju reaksi endoterm.
4.
FLASHCARD QUESTION
Front
Mengapa campuran es dan garam dapat menurunkan suhu di sekitar bahan es krim?
Back
Garam menyebabkan es menyerap kalor dari lingkungan, sehingga suhu turun.
5.
FLASHCARD QUESTION
Front
Apa yang terjadi pada paket kompres dingin yang mengandung amonium nitrat saat ditekan?
Back
Paket tersebut mengalami reaksi endotermik yang menyerap panas dari lingkungan, sehingga paket menjadi dingin.
6.
FLASHCARD QUESTION
Front
Apa yang dimaksud dengan kapasitas kalor (C)?
Back
Kapasitas kalor (C) adalah jumlah energi yang diperlukan untuk menaikkan suhu suatu sistem sebesar 1°C.
7.
FLASHCARD QUESTION
Front
Jika sebuah sistem menyerap 300 J energi dan memiliki kapasitas kalor 5 J/°C, berapa perubahan suhu sistem?
Back
Perubahan suhu sistem adalah 60°C.
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