
Perubahan Entalpi dalam Reaksi Kimia
Flashcard
•
Chemistry
•
11th Grade
•
Easy
Etika Septiyana
Used 1+ times
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10 questions
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1.
FLASHCARD QUESTION
Front
Apa yang dimaksud dengan entalpi (H) dalam konteks energi yang terkandung dalam zat?
Back
Jumlah energi yang terkandung dalam suatu zat pada tekanan yang tetap.
2.
FLASHCARD QUESTION
Front
Hadi sedang melakukan eksperimen di laboratorium untuk memahami reaksi endoterm. Dia mencampurkan beberapa bahan kimia dan mengamati perubahan suhu. Manakah pernyataan yang benar mengenai reaksi endoterm yang dia lakukan?
Back
Nilai ΔH positif, kalor berpindah dari lingkungan ke sistem, dan entalpi produk lebih besar dari reaktan.
3.
FLASHCARD QUESTION
Front
Apa perbedaan utama antara reaksi endoterm dan eksoterm dalam hal perpindahan kalor?
Back
Reaksi endoterm menyerap kalor dari lingkungan ke sistem, sedangkan reaksi eksoterm melepas kalor dari sistem ke lingkungan.
4.
FLASHCARD QUESTION
Front
Surya melakukan eksperimen dengan reaksi 2S + 3O₂ → 2SO₃ (ΔH = -800 kJ). Jika kalor yang dihasilkan adalah 200 kJ, berapa mol gas SO₃ yang terbentuk?
Back
0,5 mol
5.
FLASHCARD QUESTION
Front
Apa yang terjadi pada nilai ΔH jika reaksi A + B menghasilkan C dibalik menjadi C menjadi A + B?
Back
Tanda ΔH berubah menjadi berlawanan.
6.
FLASHCARD QUESTION
Front
Berapakah nilai ΔH untuk reaksi 4NH3 → 2N2 + 6H2?
Back
+2a kJ
7.
FLASHCARD QUESTION
Front
ΔH reaksi untuk 2CH3OH + 3O2 → 2CO2 + 4H2O?
Back
-320 kkal
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