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Mengapakah entalpi pengewapan campuran lebih besar daripada entalpi bahan tulen?

2016-12-16View Original

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Di bawah tekanan biasa, entalpi pengewapan C3H8 ialah 101.25Kcal/jam, dan entalpi pengewapan N-C5H12 ialah 85.69Kcal/jam. Jika C3H8 dan N-C5H12 dicampur pada nisbah 1:1 (mol), gunakan aspen untuk mencari bahawa entalpi pengewapan campuran di bawah tekanan normal ialah 112.224Kcal/jam, iaitu lebih besar daripada C3H8 dan N-C5H12. Bagaimana untuk menerangkan perkara ini secara teori?
Reply #22016-12-16
Adakah perlu untuk mengatasi haba pembubaran? Saya tidak tahu bagaimana untuk meneka.

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