BIS 102 Chapter Notes - Chapter 2: Clathrate Compound, Prestressed Concrete, Amphiphile
Document Summary
Water is essential for life: metabolic processes only occur with 65% h2o (at least) Intramolecular forces of attraction between water are high. Max density of water occurs in the liquid state. Bent structure of water comes from covalent bonds (also causes polarity) H-bonding in water is cooperative hydrogen bonded water molecules serving as an. Ice has a larger volume than liquid water acceptor is a better hydrogen-bond donor than unbonded molecule. Ice hydrogen bonds form space filling 3d network, bonds are directional and straight (h-o-h), so bonds are very strong. In ice, hydrogen bonds hold water molecules apart. Heat of melting for ice is a small fraction of the heat of sublimation for ice (energy to go. Ice density less than liquid water (floats in liquid water) from solid to vapor) Each water molecule is connected to every other in fluid network of h bonds.
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