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The chapter focuses on the application of interphase mass transfer, detailing the importance of dimensionless numbers such as the Sherwood, Reynolds, and Schmidt numbers in characterizing mass transfer processes. It discusses various correlations for mass transfer coefficients in different environmental contexts, such as lakes and rivers, and highlights the mathematical relationships that help in understanding these processes. Furthermore, it underscores the significance of accurate definitions and experimental measurements in the field of environmental mass transport.
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Term: Sherwood Number (NSh)
Definition: A dimensionless number representing the ratio of convective mass transport to diffusive mass transport.
Term: Reynolds Number (Re)
Definition: A dimensionless number that predicts the flow regime in fluid dynamics, indicating whether the flow is laminar or turbulent.
Term: Schmidt Number (Sc)
Definition: A dimensionless number that represents the ratio of momentum diffusivity to mass diffusivity.
Term: Mass Transfer Coefficient
Definition: A parameter that quantifies the mass transfer rate across a phase boundary, typically denoted as K.
Term: Diffusion
Definition: The process by which molecules spread from areas of high concentration to areas of low concentration.