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JEE Main & Advanced AIEEE Solved Paper-2007

  • question_answer
    Assuming that water vapour is an ideal gas, the internal energy change(\[\frac{mF}{(m+M)}\])when 1 mole of water is vapourised at 1 bar pressure and\[\frac{MF}{(m+M)}\](Given : molar enthalpy of vaporisation of water at 1 bar and 373\[-20cm\]and\[-10cm\])will be       AIEEE  Solved  Paper-2007

    A)  \[+20\text{ }cm\]           

    B)  \[+10\text{ }cm\]

    C)         \[{{T}_{1}}\]

    D)         \[{{T}_{2}}\]

    Correct Answer: C

    Solution :

    \[{{H}_{2}}O(l)\,\xrightarrow{\,}\,{{H}_{2}}O(g)\] \[\lambda \] \[I\]                                                 \[{{I}_{0}}\] \[I/{{I}_{0}}\]


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