Home
Class 12
CHEMISTRY
The elecron affinity of chlorine is 3. 7...

The elecron affinity of chlorine is `3. 7 eV`. How much energy in kcal is released when `2g` chlorine is completely converted to `cl^-` ion in a gaseous state ?
`(1 eV = 23. 06 kcal "mol"^(-1))`.

A

`3.2` kcal

B

`12.3` kcal

C

`6.4` kcal

D

`4.8` kcal

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERIODIC PROPERTIES OF ELEMENTS

    VMC MODULES ENGLISH|Exercise IMPECCABLE|50 Videos
  • PERIODIC PROPERTIES OF ELEMENTS

    VMC MODULES ENGLISH|Exercise ENABLE|47 Videos
  • p-BLOCK ELEMENTS-1

    VMC MODULES ENGLISH|Exercise JEE Advanced Archive|48 Videos
  • QUIZ

    VMC MODULES ENGLISH|Exercise CHEMISTRY|30 Videos

Similar Questions

Explore conceptually related problems

The electron gain enthalpy of chlorine 3.7 eV . How much energy in kJ and kcal is released when 1 g of chlorine is converted completely to Cl^(o-) ion in the gaseous state. (1 eV = 96.3 kJ mol^(-1))

The electron affinity of a hypothetical element 'A' is 3eV per atom. How much energy in kcal is released when 10g of 'A' is completely converted of A^(-) ion in a gaseous state ? (1 eV=23" kcal mol"^(-1) , Molar mass of A=30g)

The electron affinity of a hypothetical element 'A' is 3eV per atom. How much energy in kcal is released when 10g of 'A' is completely converted of A^(-) ion in a gaseous state ? (1 eV=23" kcal mol"^(-1) , Molar mass of A=30g)

The electron gain enthalpy of chlorine is –349 kJ mol^(–1) . How much energy in kJ is released when 3.55 g of chlorine is converted completely into Cl^(–1) ion in the gaseous state?

The Delta_(eg)H^(ɵ) of Br is 3.4 eV . How much energy in kcal is released when 0.8 g of Br (g) is completely converted to Br^(ɵ) (g) ions. (1 eV = 23.06 kcal mol^(1-)) b. The energy released when 10^(7) atoms of I (g) is converted to I^(ɵ) (g) ions, is 5 xx 10^(-13) J . Calculate Delta_(eg)H^(ɵ) of I (g) in (i) eV "atom"^(-1) and (ii) kJ mol^(-1) .

The amount of energy when million atoms of iodine are completely converted into I^(-) ions in the vapour state according to the equation, I_((g))+e^(-) to I^(-)_((g)) is 4.9X10^(-13) J.What would be the electron gain enthalpy of iodine in terms of KJ mol^(-1) and eV per atom? (A)295 , 3.06 (B)− 295, − 3.06 (C)439 , 5.09 (D)− 356 , − 7.08

Find the electron affinity of chlorine from the following data. Enthalpy of formation of LiCI is -97.5 kcal mol^(-1) , lattice energy of LiCI =- 197.7 kcal mol^(-1) . Dissociation energy of chlirine is 57.6 kcal mol^(-1) , sublimation enthalpy of lithium =+ 38.3 kcal mol^(-1) , ionisation energy of lithium =123.8 kcal mol^(-1) .

If the first ionization enthalpy of Li is 5.4 eV and the elec- tron gain enthalpy of chlorine is 3.6 eV then the Delta H in kcal/mole for the reaction will be Li(g)+Cl(g) to Li^(+) (g) Cl^(-) (g) (Presume that the pressure is so low that the ions do not combine with each other)

An unknown chlorohydrocarbon has 3.55% of chlorine. If each molecule of the hydrocarbon has one chlorine atom only, chlorine atoms present in 1 g of chlorohydrocarbon are : (Atomic wt. of Cl = 35.5 u, Avogardo constant =6.023xx10^(23) "mol"^(-1) )

The ionisation potential of hydrogen is 13.60 eV . Calculate the energy required to produce one mole of H^(o+) ion (1 eV = 96.3 kJ mol^(-1)) .

VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS-EFFICIENT
  1. Calculate the electronegativity of fluorine from the following data: ...

    Text Solution

    |

  2. Ionisation potential and electron affinity of fluorine are 17.42 and 3...

    Text Solution

    |

  3. The elecron affinity of chlorine is 3. 7 eV. How much energy in kcal i...

    Text Solution

    |

  4. If the covalent radius of silicon is 1.175 Å then its elec-tronegati...

    Text Solution

    |

  5. Answer the following question (Based on EA, Delta(eg)H^(ɵ) and IE). I...

    Text Solution

    |

  6. Property of the alkaline earth metals that increases down the group w...

    Text Solution

    |

  7. The ionisation potentials of atoms A and B are 400 and 300 kcal mol^(-...

    Text Solution

    |

  8. For the gaseous reaction K+F rarrK^(o+)+F^(ɵ) Delta H = 19 kcal mo...

    Text Solution

    |

  9. How many Cl atoms can you ionise in the process ClrarrCl^(o+)+e^(-) by...

    Text Solution

    |

  10. What will be the atomic number of the last member of the seventh perio...

    Text Solution

    |

  11. The least stable ion among the following is

    Text Solution

    |

  12. If the atomic number of an element X is 17, then what will be the atom...

    Text Solution

    |

  13. The element with atomic number 118 is likely to have the same outer sh...

    Text Solution

    |

  14. What is the position of the element in the periodic table satisfying t...

    Text Solution

    |

  15. An element has outer shell configuration of 5f^0 6d^2 7s^2. This eleme...

    Text Solution

    |

  16. Predict the blocks and periods of the following elements. Si (14)

    Text Solution

    |

  17. Predict the blocks and periods of the following elements. O (8)

    Text Solution

    |

  18. Predict the blocks and periods of the following elements. Pb (82)

    Text Solution

    |

  19. The first and second ionization enthalpies and electron gain enthalpy ...

    Text Solution

    |

  20. Predict the blocks and periods of the following elements. Se (34)

    Text Solution

    |