3.1 Introduction
In the previous chapters, we saw why we call the processes involving the exchange of mass, momentum, energy, and charge, transport phenomena. Though transport processes occur via the exchange of particles, the fundamental quantity exchanged can be viewed as information. A particle’s state contains quite a bit of information. Photons and other massless particles possess information in the form of their frequency, velocity, and phase. One can derive all the important physical properties of electromagnetic, matter, or gravitational waves through that information. Particles having mass, such as atoms and molecules, possess useful information from a chemical engineering perspective in four basic ...
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