Experimentally, dielectric constants are obtained h comparing the capacity of the condenser when fill I with a given liquid with the capacity of the same condenser containing a standard liquid whose dielectric constant is known very accurately. If D1 and 1) .lre the dielectric constants of the experimental and standard liquids and C, and C2 are the electrostatic capacities of a condenser when filled with each of the liquids then
The value of /_), can be calculated since Cj and C\ can be measured and Z>2 is known. The dielectric constants for a number of solvents are given in Table 10.1.
The final choice of solvent will be influenced by the distribution or partition coefficient K where
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