DUMET Medical DUMET Medical Solved Paper-2006

  • question_answer
    Units of van der Waals constant a are :

    A)  atm \[{{L}^{2}}\]        

    B)  atm \[{{L}^{2}}mo{{l}^{-1}}\]

    C)  arm \[{{L}^{2}}mo{{l}^{-2}}\]  

    D)  atm \[{{L}^{-1}}\]

    Correct Answer: C

    Solution :

    \[a=\frac{P{{V}^{2}}}{{{n}^{2}}}\] P = pressure in atmosphere V = volume in litre n = number of moles then, \[a=\frac{Pressure\times {{\left( Volume \right)}^{2}}}{{{\left( Mol \right)}^{2}}}\] \[=\frac{(atm)\,\,{{(L)}^{2}}}{{{(mol)}^{2}}}\] = atm \[{{L}^{2}}mo{{l}^{-2}}\]


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