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Vapor Pressure Example http://www.khanacademy.org/video/vapor-pressure-example -------------------------------------------- يتناول هذا الفيديو حل مسألة لحساب الضغط البخاري -------------------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org