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Home/ Class of 2014 IB Chem/ Contents contributed and discussions participated by Joshua Yohannan

Contents contributed and discussions participated by Joshua Yohannan

Joshua Yohannan

The Haber Process - 4 views

  • He remained there in self-imposed exile until his death some years later.
    • Joshua Yohannan
       
      it was either this or have Germany be suspicious of him even more then eventually kill him
  • the chemistry of ammonia synthesis was being explored by the German chemists Fritz Haber and Walther Bosch who found that it was possible to produce ammonia from nitrogen and hydrogen by the process:
    • Joshua Yohannan
       
      at first used for the war but later used for agricultural purposes more.
Joshua Yohannan

Haber-Bosch Process - 1 views

  • Fritz Haber
  • he received the 1918 Noble prize in Chemistry
    • Joshua Yohannan
       
      because the creation of ammonia and nitrogen was so important, this was a major discovery in the scientific world so he obtained the Nobel Prize
  • Bosch won the Nobel Prize in 1931, along with Friedrich Bergius, for high-pressure studies.
    • Joshua Yohannan
       
      later ended up being competitors for a process which easily created ammonia
  • ...3 more annotations...
  • The reaction is a reversible reaction and requires a set of optimum conditions that favor the forward reaction, the formation of ammonia
    • Joshua Yohannan
       
      this is part of equilibrium because the reaction favors the forward reaction or ammonia.
  • The United States is the second leading producer and consumer of ammonia, with China in the lead
    • Joshua Yohannan
       
      it's important to both because both have a lot of agriculture in their countries.
  • Artificial fertilizers have allowed the agricultural industry to provide a greater food supply to meet the needs of a growing population.
    • Joshua Yohannan
       
      ammonia is definetely considered a good thing because it feeds many people but it can result in highly explosive substances.
Joshua Yohannan

Gale Science In Context - Document - 2 views

  • In ancient Egypt, ammonium compounds were used in rites honoring the god Ammon, from which came the name we still use for the gas and its compounds.
    • Joshua Yohannan
       
      this is important because a lot of things originated in ancient egypt
  • German chemists Fritz Haber and Carl Bosch
    • Joshua Yohannan
       
      eventually they competed against each other because they both wanted to know about ammonia
  • Ammonia is formed from nitrogen in air by the action of nitrogen-fixing bacteria that exist in the soil on the roots of certain plants like alfalfa.
    • Joshua Yohannan
       
      is this the haber process?
  • ...4 more annotations...
  • which amounts to about 40 pounds (18 kg) for each person on Earth.
    • Joshua Yohannan
       
      it's surprising how much of an impact the haber process made in the world
  • Although Earth's atmosphere is free of ammonia
    • Joshua Yohannan
       
      this is surprising because there is ammonia in other atmospheres of other planets
  • the lightest touch will cause it to explode with a crackling sound and a puff of purple iodine vapor.
    • Joshua Yohannan
       
      so creating ammonia through the haber process can be dangerous if not handled with extreme care. should we create as much ammonia as we do?
  • For this reason, capacity and production will continue to grow
    • Joshua Yohannan
       
      creation of ammonia will always be important because it helps so much with agriculture and other things.
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