Köhler Theory Analysis (KTA)

Other Uses of KTA


Calculating Solubility

From Equation (7), sc scales with d-3/2 for completely soluble CCN . However, if it the aerosol is composed of sparingly soluble material, sc will change its dependence with d at a specific dry diameter, d* (Figure 1). This is because when d < d*, the amount of water available at the point of activation is not enough to dissolve the solute core (giving a much steeper dependence of sc on d). But when d > d*, all the solute dissolves and sc scales with d-3/2. Therefore the solubility limit of the solute, Ceq, occurs at the point where d = d* and can be expressed as:


where sc* is the critical supersaturation of the particle with dry diameter d*.















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