Dissociation degree - chelide

The fraction of dissociated molecules in the dissociation equilibrium. Symbol: α. For example,

AB A + B

In the dissociation of, if the amount of AB before dissociation is 1 mol, then the amount of each substance at equilibrium is (1 - α) mol for AB, and α mol for A and B. Generally, the lower the pressure in the dissociation of a gas, and the lower the solute concentration in the dissociation (ionization) of an electrolyte solution, the greater the degree of dissociation. [See alternative terms] Ostwald dilution law

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

解離平衡において解離した分子の割合．記号α．たとえば，

AB A ＋ B

の解離において，解離前のABの量を1 mol とすれば，平衡状態での各物質の量はABが(1 － α)mol，AおよびBはα mol となる．一般に気体の解離では低圧なほど，電解質溶液の解離(電離)では溶質濃度が希薄なほど，解離度は大となる．[別用語参照]オストワルトの希釈律

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