111.What is the Nernst equation for the Potential of an electrode? Can Nernst equation be applied to the cell relation ? Apply this equation to a general reaction.
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112.Explain Kohlrausch’s law of independent migration of ions. Mention one application of Kohlrausch’s law.
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Short Answer Type
113.How does molar conductivity vary with concentration for (i) weak electrolyte and for (ii) strong electolyte? Give reasons for these variations.
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114.State and explain Faraday's law of electrolysis?
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Long Answer Type
115.State and explain Faraday's law of electrolysis?
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116.Show that the electrical work obtainable from a galvanic cell is given by the expression.
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Short Answer Type
117.What are fuel cells? Write the reaction of a oxygen hydrogen fuel cell.
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118.
What is a mercury cell? Give the electrode reactions?
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119.What is the effect of change in (a) concentration, (b) temperature on the electrode potential of a given half-cell?
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120.Iron does not rust even if the zinc coating is broken in a galvanised iron pipe but, rusting occurs much faster if the tin coating over iron is broken. Explain?
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Short Answer Type
