CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2005

  • question_answer
    Calculate the mass loss in the following. \[_{1}^{2}H+_{1}^{3}H\xrightarrow[{}]{{}}_{2}^{4}He+_{0}^{1}n\] [Given the masses: \[^{2}H=2.014{{;}^{3}}H=3.016;\] \[He=4.004;\text{ }n=1.008amu\]]

    A) 0.018 amu          

    B) 0.18 amu

    C) 0.0018 amu   

    D)        1.8 amu

    E) 18 amu

    Correct Answer: A

    Solution :

    Total mass of \[_{1}^{2}H+_{1}^{3}H\xrightarrow[{}]{{}}_{2}^{4}He+_{0}^{1}n\] In the above reaction, Total mass of LHS\[=2.014+3.016=5.030\] Total mass of RHS\[=5.012\] Mass loss while forming the products                                 \[=5.030-5.012\]                                 \[=0.018\,amu\]


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