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1. Un cylindro contient 0,020 my d'oxygene moleculare a temperature 25 C et a pression de 15 atm. Quel serait le volume de ce gaz

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1. Un cylindro contient 0,020 my d'oxygene moleculare a temperature 25 C et a pression de 15 atm. Quel serait le volume de ce gaz a une pression d'une atmosphere ? Un patient respire cet oxygene a l'aide d'un masque a un taux de 0,0080 my /minute a pression atmosphericue. Apres combien de temps le cylindro sera-t-il 'vide' i.e. sa pression sera 1 atm

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