Displacement of Hydrogen from Acid by Magnesium

Mg + 2HCl → MgCl2 + H2

अवलोकन

Magnesium is oxidized from Mg⁰ to Mg²⁺ while hydrogen ions are reduced from H⁺ to H₂. This vigorous redox reaction produces rapid hydrogen evolution and significant heat. The reaction rate can be studied by varying acid concentration, temperature, or magnesium surface area.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Magnesium Mg 1 (s)
अभिकारक Hydrochloric Acid HCl 2 (aq)
उत्पाद Hydrogen H 1 (g)

रोजमर्रा का उदाहरण

This reaction is commonly used in school chemistry labs to study reaction kinetics by measuring the rate of hydrogen gas evolution.

औद्योगिक महत्व

Understanding metal-acid redox reactions is fundamental to corrosion science, electrochemistry, and metallurgical processing.

गुण

प्रकार
Redox
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-462.0 kJ/mol

संबंधित अभिक्रियाएँ

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) Zinc Reduction of Silver Ion Iron(II) to Iron(III) Oxidation by Oxygen

Frequently Asked Questions

What is the equation for Displacement of Hydrogen from Acid by Magnesium?
The balanced equation is: Mg + 2HCl → MgCl₂ + H₂.
What type of reaction is Displacement of Hydrogen from Acid by Magnesium?
Displacement of Hydrogen from Acid by Magnesium is a redox reaction.
Is Displacement of Hydrogen from Acid by Magnesium exothermic or endothermic?
Displacement of Hydrogen from Acid by Magnesium is exothermic (releases energy). The enthalpy change (ΔH) is -462.0 kJ/mol.