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Mengapa entalpi penguapan campuran lebih besar daripada zat murni?

2016-12-16View Original

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Pada tekanan normal, entalpi penguapan C3H8 adalah 101,25 Kcal/jam, sedangkan entalpi penguapan N-C5H12 adalah 85,69 Kcal/jam. Jika C3H8 dan N-C5H12 dicampur dalam perbandingan 1:1 (mol), maka menurut Aspen, entalpi penguapan campuran tersebut pada tekanan normal adalah 112,224 Kcal/hr. Nilai ini lebih besar daripada entalpi penguapan masing-masing komponen, yaitu C3H8 dan N-C5H12. Bagaimana hal ini dapat dijelaskan secara teoretis?
Reply #22016-12-16
Apakah perlu mengatasi panas pelarutan? Saya tidak tahu, hanya menebak saja

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