WATER MOLECULES MOVE FREELY BETWEEN THE LIQUID AND GASEOUS PHASES

I oicculcs of water in the liquid phase move about in all directions at dif-Ifercnt speeds. Some of these molecules may reach the liquid surfiice moving fast enough to overcome the hydrogen bonds and escape into the 

The exchange of molecules at the interface between liquid and gaseous water. 

Liquid water cooled as it loses this high-speed water molecule. 

Warm water evaporates, but so docs ctx)l water. The only diPFerencc is that cool water evaporates at a slower rate. Even frozen water evaporates. This form of evaporation, in which molecules jump directly from the solid phase to the gaseous phase, is called sublimation. Because water molecules are so firmly held in the solid phase, frozen water dt)cs mit relea.se molecules into the gaseous phase as readily as liquid water does. Sublimation, however, does account for the loss of significant portions of snow and ice, especially on sunny, dry mtrun-tain tt)ps. Its also why ice cubes left in the freezer for a long time tend to get smaller. 

When wet, the cloth covering on this canteen promotes cooling. 

If wateT were less sticky, would you be cooled more or less by its evaporation  

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Water Molecules Move Freely Between the Liquid and Gaseous Phases... 

B.4 WATER MOLECULES MOVE FREELY BETWEEN THE LIQUID AND GASEOUS PHASES 269... 

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