Ren asked in Science & MathematicsChemistry · 1 decade ago

What About Nitrogen + Hydrogen?

Its N2 + H2

3 Answers

  • 1 decade ago
    Favorite Answer

    Yes, what about them?

    If you just mix N2 and H2 together, you won't get much.

    There are lots of binary (only two elements) compounds of H and N. Hydrazine (H2NNH2), hydrogen azide (HN3), ammonia (NH3), etc. NH3 is the most stable of these, so it's the only thing you'll get under thermodynamic conditions. However, N2 is so unreactive that chemists use it when they need a gas that won't react with anything, so getting the reaction to run isn't trivial.

    If you take H2 and N2 and heat them (like 450ºC) under very high pressures (like 250 atm) with an iron oxide catalyst, you're doing a century-in-the-use industrial reaction called the Haber Bosch process, by which we make all our ammonia, which is the #2 commodity chemical in the world. The balanced reaction is:

    3H2 + N2 ==> 2 NH3

    The reaction is a very useful example of the principles of equilibrium, and the often-found tension between thermodynamic and kinetic factors in a reaction. The Wikipedia article on this reaction isn't bad:

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  • 1 decade ago

    Assuming a reaction occurs, well...

    N2 + 3 H2 yields 2 NH3 (ammonia gas)

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  • Anonymous
    1 decade ago


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