The effect of time

What are the molecules doing Answer The molecules are moving.  

Why do the molecules move Answer The molecules have an excess of energy.  

We now move on to a third question What else do the molecules need to allow them to move  

Molecules and segments of polymers, unhke photons or electrons, require a finite amount of time to move. Electrons and photons move so quickly that in the timescale of most mechanical experiments and observations, the movement 

For a fixed time of observation, the increase in temperature in the glass speeds up the molecular rotation, decreasing the required time. So, from the point of view of time, we can define the as that temperature when the time required for molecular motion equals the time available in the observation. The time to make an observation will vary with the type of experiment which is being performed. 

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