Home
Class 11
CHEMISTRY
lodine molecule dissociates into atoms a...

lodine molecule dissociates into atoms after absorbing light of `4500Å`. If one quantum of radiation is absorbed by each molecule, calculate the kinetic energy of iodine atoms. Bond energy of `I_(2)` is `240kJmol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
`2.16xx10^(-20) J`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYANMICS

    AAKASH SERIES|Exercise Exercise 3.1.4|7 Videos

  • CHEMICAL EQUILIBRIUM

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|30 Videos

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|50 Videos

Similar Questions

Explore conceptually related problems

A photon with a wavelength of 4000A^@ 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

The hydrogen like species Li^(2+) is in a spherically symmetric state S_(1) with one radial node. Upon absorbinf light the ion undergoes transition to a state S_(2) The state S_(2) has one radial node and its energy is equal to the ground state energy of the hydrogen atom. Energy of the state S_(1) units of the hydrogen atom ground state energy is

The oxygen molecule has a mass of 5.30 × 10^(-26) kg and a moment of inertia of 1.94×10^(-46) kg m^(2) about an axis through its centre perpendicular to the lines joining the two atoms. Suppose the mean speed of such a molecule in a gas is 500 m/s and that its kinetic energy of rotation is two thirds of its kinetic energy of translation. Find the average angular velocity of the molecule.

The work function for Cesium atom is 1.9 eV . Calculate the threshold frequency of the radiation . If the Cesium element is irradiated with a wavelength of 500 nm , calculate the kinetic energy of the ejected photoelectron .

The hydrogen like species Li^(2+) is in a spherically symmetric state S_(1) with one radial node. Upon absorbinf light the ion undergoes transition to a state S_(2) The state S_(2) has one radial node and its energy is equal to the ground state energy of the hydrogen atom. The state S_(1) is

The hydrogen like species Li^(2+) is in a spherically symmetric state S_(1) with one radial node. Upon absorbinf light the ion undergoes transition to a state S_(2) The state S_(2) has one radial node and its energy is equal to the ground state energy of the hydrogen atom. The orbital angular momentum quantum number of the state S_(2) is

The energy absorbed by each molecule ( A_2 ) of a substance is 4.4 xx 10^(-19)J and bond energy per molecule is 4.0 xx 10^(-19) J . The kinetic energy of the molecule per atom will be

AAKASH SERIES-CHEMICAL THERMODYANMICS -Questions For Descriptive Answers
  1. At constant pressure, the heat of combustion of carbon monoxide at 17^...

    Text Solution

    |

  2. What is the work done in a open vessel at 27^(@)C, when 92 grams of so...

    Text Solution

    |

  3. Certain amount of argon at 1 atm and 300 K expands reversibly and adia...

    Text Solution

    |

  4. In an insulated container, 1 mole of a liquid of molar volume 100 mL i...

    Text Solution

    |

  5. HCI is a strong acid, but HF is a weak acid. The enthalpy of neutralis...

    Text Solution

    |

  6. The enthalpy of vapourisation of water is 37.3 kl mol^(-1). Calculate...

    Text Solution

    |

  7. The standard enthalpy of hydrogenation of cyclohexene is119 kJmol^(-1)...

    Text Solution

    |

  8. Calculate the number of calories of energy released when 1 L of HCI is...

    Text Solution

    |

  9. Heats of atomisation of NH(3) and NH(2)H(4) are xKJmol^(-1)" and "yKJm...

    Text Solution

    |

  10. Standard enthalpies of C(6)H(6)(l),H(2)O(g) " and "CO(2)(g) are respec...

    Text Solution

    |

  11. Heat of formation of water and heats of combustion of ethylene and ace...

    Text Solution

    |

  12. At 427^@C, for a given change the values of DeltaG and DeltaH are -11,...

    Text Solution

    |

  13. Calculate the entropy change when one kg of water is heated from 27^(@...

    Text Solution

    |

  14. Standard entropies ofH(2)(g),O(2)(g) " and "H(2)O(l) are respectively ...

    Text Solution

    |

  15. At 127^(@)C, K(c)" for "2A Leftrightarrow 2B+C" is " 2xx10^(-4). Calcu...

    Text Solution

    |

  16. The standard heats of formation values of SF(6)(g),S(g)" and "F(g) ar...

    Text Solution

    |

  17. lodine molecule dissociates into atoms after absorbing light of 4500Å....

    Text Solution

    |

  18. Suggest the conditions for the spontaneity the thermal decomposition o...

    Text Solution

    |

  19. The reactionA+B Leftrightarrow C has the value of DeltaH and value of ...

    Text Solution

    |

  20. For the reaction,HC(2)H(2)ClO(2)(aq) Leftrightarrow H^(+)+C(2)H(2)ClO(...

    Text Solution

    |