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Define the following term: Fuel cell - Chemistry

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Question

Define the following term:

Fuel cell

Definition

Solution

Fuel cells are the galvanic cells in which the energy of combustion of the fuels like hydrogen, methanol, etc. is directly converted into electrical energy.

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2013-2014 (March) Delhi Set 1

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  1. Is silver plate the anode or cathode?  (1)
  2. What will happen if the salt bridge is removed?  (1)
  3. When does electrochemical cell behaves like an electrolytic cell?  (1)
  4. (i) What will happen to the concentration of Zn2+ and Ag+ when Ecell = 0.   (1)
    (ii) Why does conductivity of a solution decreases with dilution?  (1)
    OR
    The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2mol-1. Calculate the conductivity of this solution.  (2)

State the term for the following:

Two metal plates or wires through which the current enters and leaves the electrolytic cell.


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