Home
Class 12
CHEMISTRY
The ionisation enthalpy of hydrogen atom...

The ionisation enthalpy of hydrogen atom is `1.312 xx 10^6" J mol"^(-1)`. The energy required to excite the electron in the atom from n = 1 to n = 2 is

A

`8.51xx10^(5)"J mol"^(-1)`

B

`6.56xx10^(5)"J mol"^(-1)`

C

`7.56xx10^(5)"J mol"^(-1)`

D

`9.84xx10^(5)"J mol"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`E_(n)prop (1)/(n^(2))," For ionisation "n=1 rarroo, DeltaE ("From "n = 1 rarr2)=1.312xx10^(6)(1-(1)/(4))=9.88xx10^(5)"J mol"^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    VMC MODULES ENGLISH|Exercise LEVEL - 2|50 Videos

  • ATOMIC STRUCTURE

    VMC MODULES ENGLISH|Exercise LEVEL - 2 ( Numerical value type for JEE Main )|16 Videos

  • ATOMIC STRUCTURE

    VMC MODULES ENGLISH|Exercise Level - 0 (Long Answer Type (5 Marks))|11 Videos

  • AMINES

    VMC MODULES ENGLISH|Exercise IN CHAPTER EXERCISE H|10 Videos

  • CHEMICAL BONDING & CHEMICAL STRUCTURE

    VMC MODULES ENGLISH|Exercise IMPECCABLE|50 Videos

Similar Questions

Explore conceptually related problems

The ionisation potential of hydrogen atom is 13.6 volt. The energy required to remove an electron in the n = 2 state of the hydrogen atom is

The ionisation potential of hydrogen atom is 13.6 eV . The energy required to remove an electron in the n = 2 state of the hydrogen atom is

the energy required to excite an electron in hydrogen atom to its first excited state is

The ionisation potential of hydrogen atom is 13.6 eV The energy required to remve as electron in the n = 2 state of the hydrogen atom is

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The ionization energy of H atom is x kJ. The energy required for the electron to jump from n = 2 to n = 3 will be:

The ionisation energy of H is 1312 kJ mol^(- 1) . How much energy is required to ionise 100 gram atoms of hydrogen?

If the energy of electron in H atom is given by expression, -1312//n^(2)"k J mol"^(-1) , then the energy required to excite the electron from ground state to second orbit is:

If the energy of electron in H atom is given by expression - 1312 n^(2) kJ "mole"^(-1) then the energy required to excited the elcxtron from ground state to second orbit is

Energy of an electron is givem by E = - 2.178 xx 10^-18 J ((Z^2)/(n^2)) . Wavelength of light required to excited an electron in an hydrogen atom from level n = 1 to n = 2 will be (h = 6.62 xx 10^-34 Js and c = 3.0 xx 10^8 ms^-1 ).

VMC MODULES ENGLISH-ATOMIC STRUCTURE-LEVEL - 1
  1. The ratio of kinetic energy to the total energy of an electron in a Bo...

    Text Solution

    |

  2. The number of photons emitted per second by a 60 W source of monochrom...

    Text Solution

    |

  3. The ionisation enthalpy of hydrogen atom is 1.312 xx 10^6" J mol"^(-1)...

    Text Solution

    |

  4. Time period of a wave is 5xx10^(-3)s, what is the frequency?

    Text Solution

    |

  5. An electron from one Bohr stationary orbit can go to next higher orbit...

    Text Solution

    |

  6. An isobar of ""(20)^(40)Ca is

    Text Solution

    |

  7. The energy of second Bohr orbit of the hydrogen atom is -328 kJ "mol"...

    Text Solution

    |

  8. The radius of the first Bohr orbit of hydrogen atom is 0.529Å. The rad...

    Text Solution

    |

  9. Which one of the following sets of ions represents a collection of iso...

    Text Solution

    |

  10. Which of the following statement does not form part of Bohr's model of...

    Text Solution

    |

  11. prop-particles are represented by:

    Text Solution

    |

  12. Which of the following electronic transition in hydrogen atom will emi...

    Text Solution

    |

  13. If the energy of electron in H atom is given by expression, -1312//n^(...

    Text Solution

    |

  14. The work function of a metal is 4.2 eV. If radiation of 2000 Å fall o...

    Text Solution

    |

  15. The ratio of the radii of the three Bohr orbits for a given atom is:

    Text Solution

    |

  16. If the threshold wavelength (lambda(0)) for ejection of electron from...

    Text Solution

    |

  17. In excited H atom, when electron drop from n = 4, 5, 6 to n = 1, there...

    Text Solution

    |

  18. In Bohr's stationary orbits:

    Text Solution

    |

  19. At 200^(@)C, hydrogen molecule have velocity 2.4 xx 10^(5)" cm s"^(-1)...

    Text Solution

    |

  20. The radius of second Bohr’s orbit of Hydrogen atom is:

    Text Solution

    |