Zinc-Carbon Battery (Leclanché Cell)

Zn + 2MnO₂ + 2NH₄Cl → ZnCl₂ + Mn₂O₃ + 2NH₃ + H₂O

अवलोकन

The zinc-carbon cell uses a zinc casing as anode and a carbon rod surrounded by MnO₂ paste as cathode, with ammonium chloride paste electrolyte. Cell voltage is about 1.5 V. Invented by Georges Leclanché in 1866, it was the dominant primary battery for over a century before being largely replaced by alkaline cells.

प्रतिभागी

भूमिका	पदार्थ	गुणांक	अवस्था
अभिकारक	Zinc Zn	1	(s)
अभिकारक	Manganese Dioxide MnO₂	2	(s)
अभिकारक	Ammonium Chloride NH₄Cl	2	(s)
उत्पाद	Water H₂O	1	(l)

रोजमर्रा का उदाहरण

The cheapest AA and AAA batteries at the store are zinc-carbon cells, suitable for low-drain devices like remote controls and clocks.

औद्योगिक महत्व

Zinc-carbon batteries still account for billions of units sold annually in developing countries due to their low cost.

गुण

प्रकार: Electrochemical
प्रतिवर्ती: नहीं
ऊर्जा: ऊष्माक्षेपी
ΔH: -280.0 kJ/mol

Frequently Asked Questions

What is the equation for Zinc-Carbon Battery (Leclanché Cell)?

The balanced equation is: Zn + 2MnO₂ + 2NH₄Cl → ZnCl₂ + Mn₂O₃ + 2NH₃ + H₂O.

What type of reaction is Zinc-Carbon Battery (Leclanché Cell)?

Zinc-Carbon Battery (Leclanché Cell) is a electrochemical reaction.

Is Zinc-Carbon Battery (Leclanché Cell) exothermic or endothermic?

Zinc-Carbon Battery (Leclanché Cell) is exothermic (releases energy). The enthalpy change (ΔH) is -280.0 kJ/mol.