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Chemistry, 06.10.2021 15:30 stjuliendeja
Xét quá trình chuyển dạng thù hình : Ctc → Ckc (2)
Ở 25°C, entropi của than chì và kim cương tương ứng bằng 5,74 J/mol. K và 2,38
J/mol. K. Sinh nhiệt của CO2 và thiêu nhiệt của kim cương tương ứng bằng -393,513
kJ/mol và -395,409 kJ/mol.
1. Tính hiệu ứng nhiệt H của quá trình (2)
2. Tính biến thiên thế đẳng áp G của quá trình (2) và cho biết ở 25°C dạng thù hình
nào của cacbon là bền hơn ?
3. Xác định nhiệt độ tại đó có cân bằng giữa 2 dạng thù hình. Chấp nhận H và S
không phụ thuộc nhiệt độ.
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Answers: 1
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Xét quá trình chuyển dạng thù hình : Ctc → Ckc (2)
Ở 25°C, entropi của than chì và kim cương tương...
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