Home
Class 11
CHEMISTRY
4000 overset(0)(A) photons is used to br...

`4000 overset(0)(A)` photons is used to break the iodine molecule, then the % of energy converted to the K.E of iodine atoms if bond dissociation energy of `I_(2)` molecule is `246.5 kJ//mol`

A

`8%`

B

`12%`

C

`17%`

D

`25%`

Text Solution

Verified by Experts

The correct Answer is:
C
`E = (hc)/(lambda) = 3.1 eV = 297 kJ//"mole"`
`:. E = E_(0)+KE`
% energy converted to `KE = (297 - 246.5)/(297) = 17%`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Photon having wavelength 310 nm is used to break the bond of A_(2) molecule having bond energy 288 kJ mol^(-1) then % of energy of photon converted to the KE is : [hc = 12400 eV"Å" , 1 e V = 96 kJ/mol]

Bond energy of hydrogen gas is -433 kJ. How much is the bond dissociation energy of 0.5 mole of hydrogen gas?

Photon having wavelength 310nm is used to break the bond of A_(2) molecule having bond energy 28kg mol^(-1) then % of energy of photon converted to the K.E. is [hc=12400 evÅ,1ev=96kJ //mol]

Hydrogen when subjected to photon disocation, yieds one normal atom and atom possessing 1.97 eV more energy than normal atom .The bond dissociation energy of hydrogen molecule into normal atom is 103 kcal mol^(-1) . Campate the wavelength of effective photon for photo dissociation of hydrogen molecule in the given case

Calculate the wavelength of the radiation that would cause photo dissociation of chlorine molecule if the Cl-Cl bond energy is 243kJ//mol .

The average kinetic energy of H_(2) molecules at 300 K is E at the same temperature the average kinetic energy of O_(2) molecules is :

Calculate the wavelength of light required to break the bond between two Cl atoms in Cl_(2) molecules ((BE)_(Cl-Cl)= 243 kJ mol^(-1))

NARAYNA-ATOMIC STRUCTURE-All Questions
  1. Ground state energy of H-atom is (-E(1)),t he velocity of photoelectro...

    Text Solution

    |

  2. In a photoelectric experiment , the stopping potential Vs is plotted a...

    Text Solution

    |

  3. 4000 overset(0)(A) photons is used to break the iodine molecule, then ...

    Text Solution

    |

  4. One mole of He^(o+) ions is excited. An anaylsis showed that 50% of...

    Text Solution

    |

  5. The wave number of the first line in the Balmer series of hydrogen ato...

    Text Solution

    |

  6. An electron in a Bohr orbit of hydrogen atom with quantum level n, ha...

    Text Solution

    |

  7. Select the incorrect graph for velocity of e^(-) in an orbit vs. Z, 1/...

    Text Solution

    |

  8. What is the frequency of revolution of electron present in 2nd Bohr's ...

    Text Solution

    |

  9. According to Bohr's atomic theory, which of the following is correct ?

    Text Solution

    |

  10. Find the value of wave number (overset-v) in terms of Rydberg's consta...

    Text Solution

    |

  11. The hydrogen atom in the ground state is excited by mass of monochroma...

    Text Solution

    |

  12. What is the angular velocity (omega) of an electron occupying second o...

    Text Solution

    |

  13. The angular momentum of an electron in a Bohr's orbit of He^+ is 3.165...

    Text Solution

    |

  14. When an electron makes a transition from (n+1) state of nth state, the...

    Text Solution

    |

  15. Monochromatic radiation of wavelength lambda is incident on a hydrogen...

    Text Solution

    |

  16. For a hypothetical H like atom which follows Bohr's model, some spectr...

    Text Solution

    |

  17. When an electron makes a transition from (n + 1) state to n state ...

    Text Solution

    |

  18. Light from a discharge tube containing H-atoms in some excited state, ...

    Text Solution

    |

  19. Be^(3+) and a proton are accelerated by the same potential, their de-...

    Text Solution

    |

  20. The mass of an electron is m, charge is e and it is accelerated form r...

    Text Solution

    |