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首頁 > 技術文章 > 庫侖法計算公式

庫侖法計算公式

2013-12-24 [3978]

    在電極上析出 1 克當量的任何物質。如果析出物質的重量為W（克），參加電極反應的物質的電子轉移數為n，其分子量或原子量為M，則給出以下的關系：

                            Q       M

                       W=  —  ×    —          

                            F        N

    F為法拉第常數；Q為電量（庫侖）。若Q=1，即通過電解池的電量為1庫侖，則

                               M

                           W = ——

                                n F

   在這里M/nF這個數值稱為電解反應物質的電化當量。也就是說，通過單位電量（庫侖）所析出的物質的克數叫做電化當量。

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