Molecular collisions and transport processes from "summary" of Physical Chemistry by Robert G. Mortimer
The movement of molecules in a gas or liquid is characterized by collisions between the molecules. These collisions are crucial for understanding various transport processes, such as diffusion and viscosity. When molecules collide, they exchange energy and momentum, leading to the transfer of mass, energy, and momentum throughout the system. Diffusion, for example, is the process by which molecules move from a region of high concentration to a region of low concentration. This movement is driven by the random collisions between molecules, which cause them to spread out evenly over time. The rate of diffusion is dependent on the frequency and energy of these collisions. Viscosity, on the other hand, is a measure ...
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