22.) Diffusion flux is directly proportional to the concentration gradient, according to Fick's first law. Concentration gradient is a) Difference in concentrations at the source and sink b) Rate of change of concentration with respect to time c) Rate of change of concentration with respect to distance d) Ratio of concentrations at source and sink

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Process Flow Diagram

A process flow diagram is a representation of various components, how they are arranged, and in what manner or sequence they work in correspondence to each other. It is a graphical way of representing a process.