Home
Class 11
CHEMISTRY
Ionization enthalpy of lithium is 520 kJ...

Ionization enthalpy of lithium is `520 kJ mol^(-1)`. How much enthalpy in jọules must be needed to convert all atoms of Li to `Li^+` ions present in `7 mg` of Li vapours. `74.3 kJ`, `520 xx 6.023 xx 10^(-17)J`, `520 J`, `780 J`

A

74.3 kJ'

B

520 xx 6.023 xx 10^(-17)J'

C

520 J'

D

780 J'

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    V PUBLICATION|Exercise QUESTION BANK|116 Videos

  • ENVIRONMENTAL CHEMISTRY

    V PUBLICATION|Exercise QUESTION BANK|95 Videos

Similar Questions

Explore conceptually related problems

The ionization enthalpy of hydrogen atoms is 1.312xx10^(6) J" mol"^(-1) The energy required to excite the electron the atom from n =1 to n=2 is :

Ionization energy of He^(+) is 19.6 xx10^(-18)" J atom"^(-1) The energy of the first stationary state (n=1) of Li^(2+) is :

Ionization energy of gaseous Na atoms is 495.5" kJ mol"^(-1) . The lowest possible frequency of light that ionizes sodium atom is (h=6.626 xx 10^(-34) J s, N_(A) = 6.022 xx 10^(23)" mol"^(-1))

Calculate the energy of radiation emitted for the electronic transition from infinity to ground state for hydrogen atom. Given c = 3xx10^(8)" ms"^(-1), R_(H) = 1.09678 xx 10^(7) m^(-1), h = 6.6256 xx 10^(-34)" J s"^(-1)

Calculate the enthalpy change on freezing of '1.0 mol' of water at '10.0^circ C' to ice at '-10.0^circ C . Delta_( fus) H=6.03 kJ mol^(-1)' at '0^circ C .' 'C_p[H_2 O(t)]=7 5 . 3 J m o l^(-1) K^(-1)' 'C_p[H_2 O(s)]=36.8 J mol^(-1) K^(-1)'

V PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. Which one of the following processes proceeds with the absorption of e...

    Text Solution

    |

  2. Which of the following statement is, correct?

    Text Solution

    |

  3. Ionization enthalpy of lithium is 520 kJ mol^(-1). How much enthalpy i...

    Text Solution

    |

  4. In the second period of the periodic table, ionisation enthalpy follow...

    Text Solution

    |

  5. Which of the following configuration is expected to have maximum diffe...

    Text Solution

    |

  6. Element with atomic number 56 belongs to which block?

    Text Solution

    |

  7. The ionic radii of isoelectronic species 'N^(3-), O^(2-)' and 'F^-' in...

    Text Solution

    |

  8. The ions 'O^(2-), F^-, Na, Mg^(2+)' and 'Al^(3+)' are isoelectronic. T...

    Text Solution

    |

  9. Which of the following grouping represents a collection of isoelectron...

    Text Solution

    |

  10. Ionic radii are

    Text Solution

    |

  11. Which of the following ions has the highestvalue of ionic radius?

    Text Solution

    |

  12. Which one of the following sets of ions represents the collection of i...

    Text Solution

    |

  13. elements with atomic no '9,17,35,53' and 85 are all

    Text Solution

    |

  14. In a given shell, the order of screening effect is

    Text Solution

    |

  15. For electron affinity of halogens, which of the following is correct?

    Text Solution

    |

  16. elements with atomic no '9,17,35,53' and 85 are all

    Text Solution

    |

  17. In a given shell, the order of screening effect is

    Text Solution

    |

  18. Consider the ions: 'K^+, S^(2-), Cl^-' and 'Ca^(2+) .' The radii of th...

    Text Solution

    |

  19. Which of the following have nọ unit?

    Text Solution

    |

  20. In which of the following arrangements, the order is NOT according to ...

    Text Solution

    |