Unit.24 Electrolysis
Electrolysis
電解（名詞）
Decomposition
分解（名詞）
Electricity
電力（名詞）
Which reduction
Cathode
Anode
Reduction
Oxidation
Electrolysis means decomposition by
electricity.
By=using
occurs（名詞）
Which oxidation
occurs（名詞）
還原反應
（名詞）
Oxidation take place in anode.
Reduction take place in cathode.
氧化反應
（名詞）
Electrons
電子（名詞）
Electrons move between the
electrodes through connecting wires.
Mobile ions
自由離子
（名詞）
Mobile ions move in the electrolyte.
Preferentially discharge
優先放電
Electrochemistry
series(E.C.S.)
電化（學）序
（名詞）
Concentration
濃度（名詞）
Nature
性質（名詞）
Electroplating
電鍍（名詞）
Protect against corrosion
防止腐蝕
Improve appearance
改善外觀
Object
物件（名詞）
Effluents
廢水/污水
（名詞）
Factors
affecting
preferential
discharge of ions are position of ions
in the electrochemistry series
(E.C.S.), concentration of ions in the
solution, and nature of electrode.
Electroplating is used to protect the
object against corrosion and improve
the appearance of object.
The effluents form electroplating may
contain acids, alkalis, compound of
含有重金屬的
Compounds of heavy metals
heavy metals and other toxic
化合物（名詞）
chemical such as, cyanides.
Cyanides
氰化物（名詞）