Haryana PMT Haryana PMT Solved Paper-2005

  • question_answer
    The boiling point of n-heptane is \[{{36}^{o}}C\]. What will be its molar heat of vaporisation?

    A)  \[27,192\text{ }kJ\text{ }mo{{l}^{-1}}\]

    B)  \[98.304\text{ }kJ\text{ }mo{{l}^{-1}}\]

    C)  \[38.72\text{ }kJ\text{ }mo{{l}^{-1}}\]

    D)  Data are insufficient to calculate it

    Correct Answer: B

    Solution :

                    According to Troutons law, \[\frac{\Delta {{H}_{p}}}{{{T}_{b}}}=88\,J{{K}^{-1}}\,mo{{l}^{-1}}\]                 \[\therefore \]  \[\Delta {{H}_{\upsilon }}=88\times 309\]                                 \[=27192\,J\,mo{{l}^{-1}}\]                                 \[=27.912kJ\,mo{{l}^{-1}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner