... konulu sunumlar: "Bütün moleküller arasında vardır !"— Sunum transkripti:
1 London Kuvveti / Dağılma Kuvveti / Dipol-İndüklenmiş Dipol Çekim Kuvveti Bütün moleküller arasında vardır !Normal durum: Apolar bir molekül simetrik yük dağılımına sahiptir.Anlık Durum: Elektronların yerlerini değiştirmeleri yük ayrılmasına yol açar, bu da bir anlık dipol oluşturur.
7 What are the effects of anomalous expansion of water What are the effects of anomalous expansion of water? In a lake or sea, as water is cooled from higher temperature to 4 deg Celsius it becomes denser and sinks to the bottom but as it cools from 4 to freezing point, its density reduces as it expands and it rises to the top and eventually forms ice. The floating ice acts as insulation preventing the freezing of water below it, ensuring that life survives. If ice were heavier than water, it would sink to the bottom eventually whole of the lake would freeze, destroying any life in it. If the summer heat is unable to melt it, it would remain frozen, and without water, and the resulting rains, life on parched land will eventually die.
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