What is the method of obtaining ammonia by reacting from nitrogen to hydrogen? 

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RPF SI (2018) Official Paper (Held On : 13 Jan 2019 Shift 2)
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  1. Haber method 
  2. Method of Calgon
  3. Incineration method
  4. Heat - Shower Method 

Answer (Detailed Solution Below)

Option 1 : Haber method 
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Detailed Solution

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The Correct answer is Haber method.

Key Points

  • The Haber method is a process used to synthesize ammonia from nitrogen and hydrogen gases.
  • It was developed by the German chemist Fritz Haber in the early 20th century.
  • The process involves reacting nitrogen (N2) with hydrogen (H2) under high pressure and temperature in the presence of a catalyst.
  • Typical conditions for the reaction are around 200 atmospheres of pressure and a temperature of about 450-500 degrees Celsius.
  • The catalyst commonly used in the Haber process is iron, often with promoters like potassium oxide and aluminum oxide.
  • The chemical equation for the Haber process is: N2 + 3H2 ⇌ 2NH3.
  • This process is crucial for producing ammonia, which is a key component in fertilizers and various industrial chemicals.

 Additional Information

  • Method of Calgon
    • The Calgon method is used for water softening.
    • Calgon (sodium hexametaphosphate) is used to remove calcium and magnesium ions from water, preventing the formation of scale and soap scum.
  • Incineration Method
    • The Incineration method is a waste treatment process.
    • It involves burning organic materials at high temperatures to reduce their volume and mass and convert them into ash, flue gas, and heat.
  • Heat - Shower Method
    • The Heat-Shower method is not a recognized term in industrial or chemical processes.
    • It may be a misnomer or incorrectly listed option.
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