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A solution consisting of 2 volatile substances A and B Substance A: Molar fraction = 0.159 and pure vapour pressure (k Pa)=42.8 Substance B: Molar

A solution consisting of 2 volatile substances A and B Substance A: Molar fraction = 0.159 and pure vapour pressure (k Pa)=42.8 Substance B: Molar fraction= x and pure vapour pressure (k Pa)= 17.2 Calculate the composition of the vapor phase as the most volatile substance.

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On a un une solution forme de 2 substances volatiles A et B. Donnes: Calculez la composition de la phase vapeur en substance la plus volatile. Les valeurs des pressions de vapeur des substances pures devrait vous donner une ide de la substance la plus volatile. Donnez une rponse en fraction molaire avec 3 chiffres significatifs

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