Collision theory Color

Further, statistical mechanics and thermodynamics serve to relate the microscopic to the macroscopic. These theories are probabilistic, but they have no exceptions because of the immensity of the number of molecules—10 in a sip of water—and the rapidity of molecular motion at ambient temperatures. Thus, the average speed of molecules "scales up" to temperature, their puny interactions with light waves into color, the resistance of their crystals to being squeezed to hardness, their multitudinous and frequent collisions into a reaction that is over in a second or a millennium (Atkins, 1984, 1987, 1991 Joesten et al., 1991 Hoffmann, 1995). 

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