Hydrogen Peroxide Disproportionation

2H2O2 → 2H2O + O2

अवलोकन

Hydrogen peroxide simultaneously acts as both oxidizing and reducing agent in this disproportionation reaction. One molecule is reduced to water (O goes from -1 to -2) while another is oxidized to oxygen gas (O goes from -1 to 0). Manganese dioxide or the enzyme catalase dramatically accelerate this reaction.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Hydrogen Peroxide H₂O₂ 2 (aq)
उत्पाद Oxygen O 1 (g)
उत्पाद Water H₂O 2 (l)

रोजमर्रा का उदाहरण

The fizzing when hydrogen peroxide is applied to a wound occurs because catalase enzyme in blood rapidly decomposes H₂O₂, releasing oxygen bubbles.

औद्योगिक महत्व

H₂O₂ decomposition is used in wastewater treatment, as a propellant (concentrated H₂O₂), and catalase activity is important in food processing and biotechnology.

गुण

प्रकार
Redox
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-196.1 kJ/mol
उत्प्रेरक
MnO₂ or catalase enzyme

संबंधित अभिक्रियाएँ

Iron(II) to Iron(III) Oxidation by Oxygen Bleaching with Sodium Hypochlorite Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Displacement of Hydrogen from Acid by Magnesium

Frequently Asked Questions

What is the equation for Hydrogen Peroxide Disproportionation?
The balanced equation is: 2H₂O₂ → 2H₂O + O₂.
What type of reaction is Hydrogen Peroxide Disproportionation?
Hydrogen Peroxide Disproportionation is a redox reaction.
Is Hydrogen Peroxide Disproportionation exothermic or endothermic?
Hydrogen Peroxide Disproportionation is exothermic (releases energy). The enthalpy change (ΔH) is -196.1 kJ/mol.
What conditions are needed for Hydrogen Peroxide Disproportionation?
This reaction requires a catalyst (MnO₂ or catalase enzyme).