Alkaline Battery Discharge

Zn + 2MnO₂ + H₂O → ZnO + 2MnOOH

نظرة عامة

Alkaline batteries use zinc powder anode and MnO₂ cathode in potassium hydroxide electrolyte, producing 1.5 V. They offer 4–9 times the capacity of zinc-carbon cells for high-drain devices. The alkaline electrolyte provides lower internal resistance and better performance at high current.

المشاركون

الدور	المادة	المعامل	الحالة
متفاعل	Zinc Zn	1	(s)
متفاعل	Water H₂O	1	(l)
متفاعل	Manganese Dioxide MnO₂	2	(s)

مثال من الحياة اليومية

Duracell and Energizer AA batteries are alkaline cells — the most common battery type in the developed world.

الأهمية الصناعية

About 10 billion alkaline batteries are sold globally each year, representing the largest segment of the $50 billion primary battery market.

الخصائص

النوع: Electrochemical
قابل للعكس: لا
الطاقة: طارد للحرارة
ΔH: -315,0 kJ/mol

التفاعلات ذات الصلة

Electrorefining of Copper Anodizing of Aluminum Chlor-Alkali Electrolysis Nickel-Metal Hydride Battery Daniell Cell (Zinc-Copper Galvanic Cell) Electrolysis of Molten NaCl (Downs Process) Lead-Acid Battery Discharge Hall-Héroult Process (Aluminum Smelting) Electrowinning of Zinc Electrolysis of Water

Frequently Asked Questions

What is the equation for Alkaline Battery Discharge?

The balanced equation is: Zn + 2MnO₂ + H₂O → ZnO + 2MnOOH.

What type of reaction is Alkaline Battery Discharge?

Alkaline Battery Discharge is a electrochemical reaction.

Is Alkaline Battery Discharge exothermic or endothermic?

Alkaline Battery Discharge is exothermic (releases energy). The enthalpy change (ΔH) is -315.0 kJ/mol.