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Home/ Class of 2014 IB Chem/ Contents contributed and discussions participated by Nina Chen

Contents contributed and discussions participated by Nina Chen

Nina Chen

Researchers Gain Insight into Hundred-Year-Old Haber-Bosch Process : Rochester News - 1 views

    • Nina Chen
       
      This would increase the amount of ammonia that could be made. But would that just decrease the amount of nitrogen used? There isn't an endless amount of nitrogen
  •  
    Lexie Wisniarek
Nina Chen

The Haber Process - Nitrogen Fertilizer from the Air - 1 views

  • Haber Process is credited with feeding a third to h
    • Nina Chen
       
      How is this done?
  • alf the present world population. In fact about half the nitrogen in each of our bodies is there thanks to the Haber Process.
  • On the curse side we have several issues including:
    • Nina Chen
       
      The curses seem to outweigh the benefits
  • ...5 more annotations...
  • This trade
    • Nina Chen
       
      Countries rely on each other for natural resources
  • Haber Bosch Process requires high pressures, 200 - 300 atmospheres, and high temperatures, 400 to 550 degrees C
    • Nina Chen
       
      in order to push the reaction to produce more ammonia
  • Many people believe that to stop or limit the use of synthetic fertilizers would lead to mass starvation.
    • Nina Chen
       
      Is there no other alternative food source?
  • While natural gas is among the more plentiful fossil fuels, this level of use is not sustainable in the long term
    • Nina Chen
       
      What happens when the source runs out?
  • This leads to less nitrogen fixed naturally and increased reliance on synthetics.
    • Nina Chen
       
      What's the difference between naturally fixed nitrogen and synthetically fixed nitrogen?
Nina Chen

Gale Science In Context - Document - 2 views

  • may have been the source of nitrogen for the earliest forms of life, although much controversy exists over the details
    • Nina Chen
       
      It is still debated whether or not the early life forms used nitrogen. Not enough evidence may be known.
  • presence of an iron catalyst
    • Nina Chen
       
      Speeds up the reaction but doesn't change the equilibrium point
  • strong color
    • Nina Chen
       
      What makes a color 'strong'?
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