Home
Class 12
CHEMISTRY
What are the fuel cells ? How are they d...

What are the fuel cells ? How are they different from galvanic cells ? Give the construction of `H_(2), O_(2)` fuel cell ?

Text Solution

Verified by Experts

A fuel cell is a gavlvanic cell in which the chemical energy of fuel-oxidant system is converted directly into electrical energy.
`to` Conventional Galvanic cell converts chemical energy into electrical energy by spontaneous redox reactions.
`to` Fuel cell convert energy of combustion of fuels like hydrogen, methane etc., into electrical energy. These cause less pollution.
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY & CHEMICAL KINETICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise SHORT ANSWER QUESTIONS|25 Videos

  • ELECTROCHEMISTRY & CHEMICAL KINETICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS|12 Videos

  • ELECTROCHEMISTRY & CHEMICAL KINETICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise PROBLEMS|55 Videos

  • D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise INTEXT QUESTIONS|33 Videos

  • GENERAL PRINCIPLES OF MMETALLURGY

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise DAM SURE SAQ|1 Videos

Similar Questions

Explore conceptually related problems

Animal cells are different from plant cells in lack of

What is galvanic cell ? Give one example.

What are the limitations of fuel cells?

How is a cancerous cell different from a normal cell?

What are fuel cells? Write their advantage and de-merits .

Cells of collenchyma differ from parenchyma cells mainly in

Guard cells differ from epidermal cells in having

In a Galvanic cell, the electrons flow from

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ELECTROCHEMISTRY & CHEMICAL KINETICS-VERY SHORT ANSWER QUESTIONS
  1. Give one example for a secondary battery. Give the cell reaction.

    Text Solution

    |

  2. Give the cell reaction of nickel-cadimuim secondary battery.

    Text Solution

    |

  3. What are the fuel cells ? How are they different from galvanic cells ?...

    Text Solution

    |

  4. Give the electrode reactions occuring at the anode and at the cathode ...

    Text Solution

    |

  5. What is metallie corrosion ? Give one example.

    Text Solution

    |

  6. Give the electro-chemical reaction that represents the corrosion or ru...

    Text Solution

    |

  7. Define the speed or rate of a raction.

    Text Solution

    |

  8. Assuming that the volume of the system is constant, derive the average...

    Text Solution

    |

  9. What are the units of rate of reaction ?

    Text Solution

    |

  10. Drawn the graphs that relate the concentrations (C ) of the reactants ...

    Text Solution

    |

  11. Write the equation for rthe rate of the reaction 5 Br((aq))^(-)+BrO(...

    Text Solution

    |

  12. What is rate law ? Illustrate with an example.

    Text Solution

    |

  13. Mention a reaction for which the exponnts of concentration terms are n...

    Text Solution

    |

  14. Define order of a reaction. Illustrate your answer with an example.

    Text Solution

    |

  15. What are elementary reactions ?

    Text Solution

    |

  16. What are compelex reactions ? Name one complex reaction.

    Text Solution

    |

  17. Give the units of rate constants for Zero, first order and second orde...

    Text Solution

    |

  18. Define molecularity of a reaction, Illustrate with an example.

    Text Solution

    |

  19. What is rate determining step in a complex reaction ?

    Text Solution

    |

  20. Give the mechanism for the decomposition reacton of H(2)O(2) in alkali...

    Text Solution

    |