Home
Class 12
PHYSICS
Calculate the energy released in MeV in ...

Calculate the energy released in MeV in the following nuclear reaction :
`" "_(92)^(238)U to" "_(90)^(234)Th + " "_(2)^(4)He + Q`
mass of `" "_(92)^(238)U = 238.05079 u`, mass of `" "_(90)^(234)Th = 234.043630 u`, mass of `" "_(2)^(4)He = 4.00260 u`, `1 u=931.5 MeV/c^(2)`.

Text Solution

Verified by Experts

Energy released in the reaction `Q= [m (" "_(92)^(238)U) -m (" "_(90)^(234)Th) -m (" "_(2)^(4)He)]c^(2) =(238.05079 - 234.04363-4.00260) u xx c^(2)= (0.00456 u). c^(2) = 0.00456 xx 931.5 MeV= 4.25 MeV`.
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    U-LIKE SERIES|Exercise Long Answer Question-I|22 Videos

  • NUCLEI

    U-LIKE SERIES|Exercise Long Answer Question-II|2 Videos

  • NUCLEI

    U-LIKE SERIES|Exercise Very Short Answer Question|30 Videos

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION D)|1 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION B)|3 Videos

Similar Questions

Explore conceptually related problems

Calculate the energy released in MeV in the following nuclear reaction : ._(92)^(238)Urarr._(90)^(234)Th+._(2)^(4)He+Q ["Mass of "._(92)^(238)U=238.05079 u Mass of ._(90)^(238)Th=234.043630 u Massof ._(2)^(4)He=4.002600 u 1u = 931.5 MeV//c^(2)]

Calculate the amount of energy released during the alpha -decay of ._(92)^(238)Urarr_(90)^(234)Th+._(2)^(4)He Given: atomic mass of ._(92)^(238)U=238.05079 u , atomic mass of ._(90)^(234)Th=234.04363 u , atomic mass ._(2)^(4)He=4.00260u , 1u=931.5 MeV//c^(2) . Is this decay spontaneous?Give reason.

In the nuclear reaction ""_(92)U^(238) to ""_(z)Th^(A) + ""_(2)He^(4) , the values of A and Z are

From the following nuclei select the isotopes and isobars : ""_(92)^(238)U, ""_(90)^(234)Th, ""_(92)^(234)U, ""_(91)^(234)Pa .

Find the kinetic energy of emitted a-particles in the following nuclear reaction: ""_(94)Pu^(238) to ""_(92)U^(234) + ""_(2)He^(4) m(Pu^(238)) = 238.04954 amu m(U^(234)) = 234.04096 amu m(""_(2)He^(4)) = 4.002603 amu

Determine the number of protons and neutrons in ""_(92)U^(238) and ""_(90)Th^(234) .

U-LIKE SERIES-NUCLEI-Short Answer Questions
  1. State two characteristics of nuclear force. Why does the binding energ...

    Text Solution

    |

  2. If both the number of protons and neutrons in a nuclear reaction is co...

    Text Solution

    |

  3. Plot a graph showing the variation of undecayed nuclei N versus time t...

    Text Solution

    |

  4. Calculate the energy released in MeV in the following nuclear reaction...

    Text Solution

    |

  5. Define ‘disintegration constant’ and ‘mean life’ of a radioactive subs...

    Text Solution

    |

  6. Define half-life period of a radioactive substance. Establish its rela...

    Text Solution

    |

  7. A radio nuclide sample has N(0) nuclei at t=0. Its number of undecayed...

    Text Solution

    |

  8. A radioactive substance has half-life T(1/2) and number of radioactive...

    Text Solution

    |

  9. A radioactive nucleus ‘A’ undergoes a series of decays according to th...

    Text Solution

    |

  10. Complete the following nuclear reactions : (a) " "(5)^(10)B + " "(0)...

    Text Solution

    |

  11. Draw a plot of potential energy of a pair of nucleons as a function of...

    Text Solution

    |

  12. Draw a graph showing the variation of potential energy between a pair ...

    Text Solution

    |

  13. Draw a plot of potential energy of a pair of nucleons as a function of...

    Text Solution

    |

  14. Distinguish between the phenomena of nuclear fission and fusion.

    Text Solution

    |

  15. The half-life of " "(92)^(238)U undergoing alpha-decay is 4.5 xx 10^(9...

    Text Solution

    |

  16. A heavy nucleus X of mass number 240 and binding energy per nucleon 7....

    Text Solution

    |

  17. A nucleus with mass number A = 240 and BE/A = 7.6 MeV breaks into two ...

    Text Solution

    |

  18. Calculate the energy released in fusion reaction : " "(1)^(2)H + " "(1...

    Text Solution

    |

  19. A radioactive sample has activity of 10,000 disintegrations per second...

    Text Solution

    |

  20. (a) Write two distinguishing features of nuclear forces. (b) Complet...

    Text Solution

    |