Home
Class 12
CHEMISTRY
The atomic masses of Li, He and proton a...

The atomic masses of Li, He and proton are 7.01823 amu, 4.00387 amu and 1.00715 amu respectively. Calculate the energy evolved in the reaction, `3^(Li^(7)) + 1^(H^(1)) rarr 2 2^(He^(4)) + triangle` E Given 1 amu = 931 MeV.

Text Solution

Verified by Experts

Mass of reactants = mass of Li + mass of H
=7.01823 + 1.00715
=8.02358 amu
mass loss during change =(8.02538 -8.00774) amu
=0.01764 amu
`therefore` energy evolved during reaction
=0.0176 x 931 MeV
=16.423 MeV
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    NCERT GUJARATI|Exercise PRACTICE PROBLEMS|2 Videos

  • NUCLEAR CHEMISTRY

    NCERT GUJARATI|Exercise SELF EVALUATION|23 Videos

  • ISOMERISM IN ORGANIC CHEMISTRY

    NCERT GUJARATI|Exercise SELF EVALUATION (CONFORMATION)|2 Videos

  • ORGANIC NITROGEN COMPOUNDS

    NCERT GUJARATI|Exercise Diazonium chloride|4 Videos

Similar Questions

Explore conceptually related problems

If the binding energy per nucleon in ._(3)Li^(7) and ._(2)He^(4) nuclei are respectively 5.60 MeV and 7.06 MeV, then the ebergy of proton in the reaction ._(3)Li^(7) +p rarr 2 ._(2)He^(4) is

The length and breadth of a rectangle are ( 5.7 +- 0.1 ) cm and ( 3.4 +- 0.2 ) cm , respectively calculate the area of rectangle with error limits.

Calculate the number of electrons in 1.4 gram 7^(N^(3-)) ion. (Atomic mass of N=14).

""_3^7Li + A to ""_2^4He + B . A and B are respectively......

The electrostatic energy of Z protons uniformly distributed throughout a spherical nucleus of radius R is given by E = (3 Z(Z- 1)e^(2))/5( 4 pi e _(0)R) The measured masses of the neutron _(1)^(1) H, _(7)^(15) N and , _(8)^(16)O are 1.008665 u, 1.007825 u , 15.000109 u and 15.003065 u, respectively Given that the ratio of both the _(7)^(12) N and _(8)^(15) O nucleus are same , 1 u = = 931.5 Me V c^(2) (c is the speed of light ) and e^(2)//(4 pi e_(0)) = 1.44 MeV fm Assuming that the difference between the binding energies of _7^(15) N and _(8)^(15) O is purely due to the electric energy , The radius of the nucleus of the nuclei is

Masses of two bodies are 1kg and 4kg respectively. If their kinetic energies are in 2:1 proportion, ratio of their speeds is ……………

A nucleus at rest undergoes a decay emitting an a particle of de - Broglie wavelength lambda = 5.76 xx 10^(-15)m if the mass of the daughter nucleus is 223.610 amu and that of alpha particle is 4.002amu , determine the total kinetic energy in the final state Hence , obtain the mass of the parent nucleus in amu (1 amu = 931.470 MeV//e^(2) )

The positions of ._(1)^(2)D,._(2)^(4)He and ._(3)^(7)Li are shown on the binding energy curve as shown in figure. The energy released in the fusion reaction. ._(1)^(2)D+._(3)^(7)Li rarr 2 ._(2)^(4)He + ._(0)^(1)n

NCERT GUJARATI-NUCLEAR CHEMISTRY-SELF EVALUATION
  1. The atomic masses of Li, He and proton are 7.01823 amu, 4.00387 amu an...

    Text Solution

    |

  2. The phenomenon of radioactivity was discovered by

    Text Solution

    |

  3. The most penetrating radiations are

    Text Solution

    |

  4. In the nuclear reaction, 92^(X^(232))rarr 89^(Y^(220)), the number of ...

    Text Solution

    |

  5. Which one of the following particles is used to bombard 13^(Al^(27)) t...

    Text Solution

    |

  6. The reaction 5^(B^(8))rarr4^(Be^(8)) takes place due to

    Text Solution

    |

  7. Radioactivity is due to

    Text Solution

    |

  8. In the nuclear reaction, 92^(X^(232))rarr 89^(Y^(220)), the number of ...

    Text Solution

    |

  9. 92^(U^(235)) nucleus absorbs a neutron and disintegrates into 54^(Xe^(...

    Text Solution

    |

  10. Loss of a beta-particle is equivalent to

    Text Solution

    |

  11. Which of the following is used as neutron absorber in the nuclear reac...

    Text Solution

    |

  12. What is half life period.

    Text Solution

    |

  13. Write two difference between chemical reaction and nuclear reaction.

    Text Solution

    |

  14. What is Q value of a nuclear reaction?

    Text Solution

    |

  15. State two uses of radio carbon dating.

    Text Solution

    |

  16. How many alpha and beta particles will be emitted by an element 84^(A^...

    Text Solution

    |

  17. Calculate the decay constant for Ag^(108) if its half life is 2.31 min...

    Text Solution

    |

  18. Complete the following nuclear reactions (i) 18^(Ar^(40)) + ? ra...

    Text Solution

    |

  19. Calculate the number of alpha and beta particles emitted in the conver...

    Text Solution

    |

  20. The atomic mass of Th is 232 and its atomic number is 90. In terms of ...

    Text Solution

    |

  21. Calculate the average life of 79A^(Au^(198)) leaving t^(1//2) = 150 da...

    Text Solution

    |