Home
Class 12
CHEMISTRY
The cost of electrical energy in the pro...

The cost of electrical energy in the production of `"x L H"_(2)` at STP by electrolysis of acidified water , is x rupees . Calculate the cost of electrical energy to produce xL of `o^(2)` at STP .

Text Solution

Verified by Experts

Ration of volumes of `H_(2)` to `O_(2)` evolved in electrolysis is `=2:1`
Hence, `"xL H_(2)-=(x)/(2)LO_(2)-=x` rupees (for a definite amount of electricity) therefore `xLO_(2)-="2x rupees"`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Choose the correct alternative)|6 Videos
  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos
  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER-TYPE QUESTIONS)|62 Videos
  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos
  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

Similar Questions

Explore conceptually related problems

Calculate the volume of N_(2) required to produce 44.8 L of NO at STP [Ans.22.4L]

Calculate the number of O-atoms present inn 112 L of CO_(2) gas at STP.

What should be the current strength to produce 1 mL H_(2) passed through acidified water for 5 h?

Electrical energy is transmitted at the rate of 2.2 MW through the line wire . The resistance of the line wire is 25Omega .Calculate the percentaage of heat dissipation of the electrical energy for each line voltage : 22000 V 110 kV

Electrical energy is transmitted at the rate of 2.2 MW through the line wire . The resistance of the line wire is 25Omega .Calculate the percentaage of heat dissipation of the electrical energy for each line voltage : 110 kV

How much electricity is required for the oxidation of - 1 mol of H_(2)O to O_(2) ?

If 4A of electric current is passed through an acidulated water for 30 min, then the volume of H_(2) gas to be produced at STP is -

5 ml solution of H_2O_2 liberates 0.508 g iodine from an acidifoed KI solution Calculate the strength of H_2O_2 solution interms of volume strength at STP.

27g Al is discharged , when 0.5 A current is passed through molten AlCl^(3) . Calculate ( 1 ) the number of gram equivalents of Al discharged ( ii ) the number of gram atoms of Al discharged ( iii ) the number of molecules of Al discharged ( iv ) the number of electrons that took part in the process ( v ) the amount of electricity ( in F ) that was used ( vi ) the duration of passage of electricity ( vil ) the volume of Cl_(2) , ( in L ) produced at STP .

A heating coil of resistance 100Omega is connected for 30 min to 220 V . By this time determine (i) amount of charge flowing ( ii) amount of electrical energy consumed (iii) amount of heat greanerted .Determine the cost of consumed electrical energy if 1 kW . h costs R.s 1 .

CHHAYA PUBLICATION-ELECTROCHEMISTRY-NUMERICAL PROBLEMS
  1. Find the number of Al-atoms, discharged when 2 C electricity is passed...

    Text Solution

    |

  2. Find the amount of Fe^(2+) and Fe^(3+) discharged (in grams) by 1 fara...

    Text Solution

    |

  3. If 200 A current is passed through molten NaCl for 1 min , how many mo...

    Text Solution

    |

  4. If 10 C of electricity is passed through an aqueous solution of a meta...

    Text Solution

    |

  5. The cost of electrical energy in the production of "x L H"(2) at STP...

    Text Solution

    |

  6. Calculate the charge of 0.1 mol of P(2)O(7)^(4-) ion.

    Text Solution

    |

  7. To reduce 1 mol Cr(2)O(7)^(2-) to Cr^(3+) , find the amount of ele...

    Text Solution

    |

  8. The same amount of electricity required to produce 10g Ag from AgNO(3...

    Text Solution

    |

  9. 3.7 A current was passed for 6h through 0.5L 2( M ) solution of Ni(N...

    Text Solution

    |

  10. 27g Al is discharged , when 0.5 A current is passed through molten AlC...

    Text Solution

    |

  11. Calculate the time to electroplate a metal surface of area 80 cm^(2) ...

    Text Solution

    |

  12. If 1 mol electron is passed through each of AgNO(3) , CuSO(4) and A...

    Text Solution

    |

  13. Two electrolytic cells A and B contain gold salt and copper sulphate s...

    Text Solution

    |

  14. The same amount of electricity is passed through acidified water and a...

    Text Solution

    |

  15. In an electrolytic cell , molten Al(2)O(3) is taken , through which a...

    Text Solution

    |

  16. Cr is produced by electrolysis of an acidic solution of CrO(3) . The ...

    Text Solution

    |

  17. MnO(2) , is prepared by electrolysis of an aqueous solution of mnso4 ...

    Text Solution

    |

  18. On electrolysis of aq NaCl solution , H(2)(g) , Cl(2)(g) and NaOH a...

    Text Solution

    |

  19. 0.617g metal is produced at cathode during electrolysis of a metal iod...

    Text Solution

    |

  20. 500 mL 4 (M) of NaCl solution is electrolysed liberating Cl(2)(g) at a...

    Text Solution

    |