Home
Class 11
CHEMISTRY
Calculate the energy of one mole of phot...

Calculate the energy of one mole of photons of radiations whose frequency is `3 xx 10^(12) Hz`

Text Solution

Verified by Experts

`E=h upsilon=6.625xx10^(-34)" Js "xx3xx10^(12)s^(-1)`
`=1.9875xx10^(-21)"J for one photon "`
`"Energy of one mole of photons is"`
`="Energy of one photon"xx"Avogadro number "`
`=1.9875xx10^(-21)Jxx6.023xx10^(23)`
`=1.1970xx10^(3)" J mol"^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (LONG ANSWER QUESTIONS)|3 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (SHORT ANSWER QUESTIONS)|6 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Level-II (Type - II) (Practice sheet- 6 (subjective/Analytical type Questions))|8 Videos

  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise OBJECTIVE EXERCIES - 3 (RECENT AIPMT/NEET QUESTIONS)|10 Videos

  • CHEMICAL BONDING

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE -3 (RECENT AIPMT/NEET QUESTIONS )|39 Videos

Similar Questions

Explore conceptually related problems

Calculate energy of one mole of photons of radiation whose frequency is 5xx10^(14) Hz.

The threshold frequency (v_(0)) for a metal is 5 xx 10^(14)S^(-1) . Calculate the kinetic energy of emitted electron when a radiation with frequency of 2 xx 10^(15) sec^(-1) hits the metal surface.

The threshold frequency v_(0) for a metal is 7.0xx10^(14)s^(-1) . Calculate the kinetic energy of an electron emitted when radiation of frequency v=1.0xx10^(15)s^(-1) hits the metal .

The threshold frequency for a metal is 7.0 xx 10^(14) s^(-1) . Calculate the kinetic energy of an electron emitted when radiation of frequency 10^(15)s^(-1) hits the metal.

Find energy of photons which corresponds to light of frequency 3 xx 10^(12) Hz

The energy of an x-ray photon is 4 kev. Its frequency is nearly

AAKASH SERIES-ATOMIC STRUCTURE-PROBLEMS
  1. The vividh bharati station of All India Radio, Delhi broadcasts on a f...

    Text Solution

    |

  2. Neon gas is generally used in the sign boards. If it emits with wavele...

    Text Solution

    |

  3. Calculate the energy of one mole of photons of radiations whose freque...

    Text Solution

    |

  4. How many photons of light with a wave length of 4000 pm are necessary ...

    Text Solution

    |

  5. The threshold frequency of a metal is 1.11 xx 10^(16) Hz. What is the ...

    Text Solution

    |

  6. What is the ratio between the energies of two types of radiation whose...

    Text Solution

    |

  7. The work function of a metal is 4.2eV. If the radiation of 2000Å falls...

    Text Solution

    |

  8. Electrons are emitted with zero velocity from a metal surface when it ...

    Text Solution

    |

  9. The threshold frequency for a metal is 7.0 xx 10^(14) s^(-1). Calculat...

    Text Solution

    |

  10. Calculate the wave number and wave length of H(alpha) line in the Balm...

    Text Solution

    |

  11. Why many lines are observed in the hydrogen emission spectrum ?

    Text Solution

    |

  12. Hydrogen atoms are de-excited from N shell. Illustrate the spectral li...

    Text Solution

    |

  13. What is the wavelength of light emitted when the electron in a hydroge...

    Text Solution

    |

  14. Calculate the wave number of the first spectral line in the Lyman seri...

    Text Solution

    |

  15. Why the total energy of atomic electron is negative ?

    Text Solution

    |

  16. The radius of the fourth orbit in hydrogen atom is 0.85 nm. Calculate ...

    Text Solution

    |

  17. Why is the transition from n=3 to n=1 gives a spectral triplet

    Text Solution

    |

  18. What is the ratio of the radii of the 3rd orbits of He^(+) and Li^(2+)...

    Text Solution

    |

  19. The ionisation energy of He^(+) is 19.6xx10^(-18)"J atom"^(-1) Calcula...

    Text Solution

    |

  20. How many times the normal electrons of hydrogen atom revolve round the...

    Text Solution

    |