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Confusion about Stoichiometric coefficients

  1. May 28, 2010 #1
    Hey folks! I am studying from a thermodynamics text (engineering thermo) and I am a little confused with the wording in the following development of the "Equation of Reaction Equilibrium":

    I am a little confused as to the distinction between the n's and the v's. Is it saying that the n's are the actual amounts present whereas the v's are the theoretical amounts needed for a balanced reaction?

  2. jcsd
  3. May 28, 2010 #2
    Stochiometric coefficients describe the relative rates of reaction for the different reactants and products, you could say.

    Another way to look at it is that for every va moles of A participate in the reaction, vb moles of B will also participate, vc moles of C and vd moles of D will be produced.

    Hope that clears things up.
  4. Jun 1, 2010 #3


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    I think you understand the text perfectly.
    It is very like an extensive property vs and intensive property in this description.
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