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Concentration Cell (batteries)

blazinfury
in Inorganic Chemistry

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I have a quest about concentration cells. I understand that they are constructed almost like galvanic cells, except they are spontaneously run where the 2 solutions (at anode and cathode respectively) are at different concentrations. Lets say that our solutions were 1 M and 0.1 M respectively, but the anode and cathode were not identified. From that information can we instantly deduce that the reaction would move from the lower to higher concentration to make the Nernst eq yield a +E b/c such a rxn is spontaneous? Or does the anode and cathode have to be identified in order to deduce how the cell will run?

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