In fuel cell, chemical energy of fuel is converted into electrical energy.
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Which solution will allow greater conductance of electricity, 1 M NaCl at 293 K or 1 M NaCl at 323 K?
Answer: 1 M NaCl at 323 K will allow greater conductance of electricity as the ionic mobilities increase with increase in temperature.
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Give an example of “fuel celIs”.
Answer:
Galvanic cells that are designed to convert the energy of combustion of fuels like hydrogen, methane, methanol, etc. directly into electrical energy are called fuel cells.
H2—O2 fuel cell.
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Write the equation showing the relation between standard free energy and standard cell potential?
ANswer: The relation between satandard free energy and standard cell potential is given by ΔG° = – nFE°cell.
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