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BVP Medical BVP Medical Solved Paper-2011

  • question_answer
    \[1c{{m}^{3}}\] of water at its boiling point absorbs 540 cal of heat to become steam with a volume of \[1671\text{ }c{{m}^{3}}.\]If the atmospheric pressure\[f\]and  the  mechanical equivalent of heat = 4.2 J/cal, the energy spent in this process in overcoming inter molecular forces is

    A)  540 cal                 

    B)  40 cal

    C)  500 cal                 

    D)  zero

    Correct Answer: C

    Solution :

                    Work done \[[\exp (7.62)=2038.6,k=1.4\times {{10}^{-24}}J/k]\] \[2037.6\times {{10}^{-3}}A\] \[203.76\times {{10}^{-3}}A\] \[20.376\times {{10}^{-3}}A\] From first law of thermodynamics \[2.0376\times {{10}^{-3}}A\] \[\mu F\]


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