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)
Copper Oxidation by Nitric Acid
Hypochlorite Oxidation of Hydrogen Peroxide
Hydrogen Peroxide as Oxidizing Agent (Acidic)
Hydrogen Peroxide Disproportionation
Iodine and Sodium Thiosulfate Titration
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.