Home
Class 12
CHEMISTRY
A fuel cell uses CH4(g) and forms CO(3)^...

A fuel cell uses `CH_4(g)` and forms `CO_(3)^(2-)` at the anode.It is used to power a car with 80 Amp.for 0.96 hr.How many litres of `CH_(4)(g)` (at STP.) would be required ? `(V_m=22.4 L//mol)(F=96500)`.Assume 100% efficiency.

Text Solution

Verified by Experts

The correct Answer is:
`8`
`CH_(4)+10OH^(-)toCO_(3)^(2-)+7H_(2)O+8e^(-)`
No. of faradays required`=(80xx3600xx0.96)/(96500)`
`V_(CH_(4))=(1)/(8)xx(80xx3600xx0.96)/(96500)xx22.4L=8356xx0.96=8.02L`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Assertion Reasoning|11 Videos

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Subjective Questions|14 Videos

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Board Level Exercise|20 Videos

  • ELECTRO CHEMISTRY

    RESONANCE ENGLISH|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise Part -IV|22 Videos

Similar Questions

Explore conceptually related problems

A fuell cell uses CH_(4)(g) and forms CO_(3)^(2-) at the anode. It is used to power a car with 80 amp, for 0.96 hr. how many litres of CH_(4)(g) (at 1 atm, 273 K) would be required? (V_(m) = 22.4 L/mol) (F = 96500). Assume 100% efficiency.

How many litres of CO_(2) at STP wil be formed when 100mL of 0.1 M H_(2)SO_(4) reacts with excess of Na_(2)CO_(3) ?

Consider the following reactions, CH_(4)(g) + 2O_(2)(g) to CO_(2)(g) + 2H_(2)O(g) How many moles of methane are required to produce 22g of CO_(2) (g) after combustion?

Calculate the internal pressure for CO_(2) . Given the value of van der Waals constant for CO_(2) is a = 0.37 N - m^(4) //m o l^(2) and V = 22.4 litre // mol.

What volume of 96% H_(2)SO_(4) solution (density 1.83 g/mL) is required to prepare 4 litre of 3.0 M H_(2)SO_(4) solution ?

Assume that for a domestic hot water supply 150 kg water per day must be heated from 10^(@)C to 65^(@)C and gaseous fuel propane C_(3)H_(8) is used for this purpose. What moles and volume of propane (in L at STP) would have to be used for heating domestic water, DeltaH for combustion of propane is -2050kJ mol^(-1) and specific heat of water is 4.184 xx 10^(-3) kJ g^(-1) .

In an experiment, a mixture of 8g CH_(4) and 24gO_(2) was burn to form CO_(2) and H_(2)O according to the equation :CH_(4)(g)+2O_(2)(g) to CO_(2)(g)+2H_(2)O(g)+ heat How many moles of CO_(2) will be formed ?

A power transformer is used to step up an alternating e.m.f. of 220 V to 11kv to trannsmit 4.4 kW of power. If the primary coil has 1000 turns, what is the current rating of the secondary?(Assume 100% efficiency for the transformer)

At STP, 14 g of nitrogen occupies 11.2 litres. Use this information to determine the atomicity of nitrogen. It is given that molar volume of nitrogen at STP is 22.4 L.

+underset("(Excess)")(CH_(3)MgBr)rarr underset("(Gas)")(P)+Q How many litres of gas 'P' is formed in above reaction at NTP. (molar volume of gas a NTP is 22.4 L)

RESONANCE ENGLISH-ELECTROCHEMISRY-Exercise
  1. One of the methods of preparation of per disulphuric acid, H(2)S(2)O(8...

    Text Solution

    |

  2. The Standard reduction potential of E(Br^(3+)+Bi)^(@) "and" E(Cu^(2+)/...

    Text Solution

    |

  3. A fuel cell uses CH4(g) and forms CO(3)^(2-) at the anode.It is used t...

    Text Solution

    |

  4. The resistance of a N//10 KCI solution is 245 ohms. Calculate the spec...

    Text Solution

    |

  5. The resistance of a solution 'A' is 50 ohm and that of solution 'B' is...

    Text Solution

    |

  6. In a conductivity cell the two platinum electrodes each of area 10 sq....

    Text Solution

    |

  7. The equivalent conductance of 0.10 N solution of MgCI(2) is 97.1 mho c...

    Text Solution

    |

  8. The specific conductance of a N//10 KCI solution at 18^(@)C is 1.12 xx...

    Text Solution

    |

  9. The equivalent conductances of an infinitely dilute solution NH(4)CI i...

    Text Solution

    |

  10. Given the equivalent conductance of sodium butyrate sodium chloride an...

    Text Solution

    |

  11. Calculate the dissociation constant of water at 25^(@)C from the follo...

    Text Solution

    |

  12. Calculate K(a) of acetic acid it its 0.05N solution has equivalent con...

    Text Solution

    |

  13. The sp cond of a saturated solution of AgCI at 25^(@)C after substract...

    Text Solution

    |

  14. In the galvanic cell, true statement

    Text Solution

    |

  15. Which of the following statements is wrong about galvanic cells?

    Text Solution

    |

  16. Which of the following is ( are ) function (s) of salt bridge ?

    Text Solution

    |

  17. Salt bridge contains

    Text Solution

    |

  18. E^(@) for F(2)+2e^(-) hArr 2F^(-) is 2.8V,E^(@) for (1)/(2)F+e^(-)=F...

    Text Solution

    |

  19. Consider the cell potentials E(Mg^(2+)|Mg)^(0)=-2.37V and E(Fe^(3+)|Fe...

    Text Solution

    |

  20. If a spoon of copper metal is placed in a solution of ferrous sulphate...

    Text Solution

    |