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NEET Sample Paper NEET Sample Test Paper-12

  • question_answer
    In the nuclear change \[{{\,}_{92}}{{U}^{235}}+{{\,}_{0}}{{n}^{1}}\xrightarrow{{}}\] Fission products + neutron + \[3.20\times {{10}^{-11}}\,J,\] the energy released when 1 g of\[{{\,}_{92}}{{U}^{235}}\]finally undergoes fission is

    A) \[12.75\times {{10}^{8}}\,kJ\]  

    B) \[18.60\,\times {{10}^{9}}kJ\]

    C)  \[8.21\times {{10}^{7}}\,kJ\]               

    D)  \[6.55\times {{10}^{6}}\,kJ\]

    Correct Answer: C

    Solution :

     236 amu gives \[3.20\times {{10}^{-11}}\,J\] \[\therefore \]\[\frac{1}{1.66}\times 1024\]gives \[=\frac{3.20\times {{10}^{-11}}\times {{10}^{24}}}{1.66\times 236}\] \[=8.21\times {{10}^{10}}\,J\]


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