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EAMCET Medical EAMCET Medical Solved Paper-1997

  • question_answer
    A gas at temperature \[27{}^\circ C\] and pressure 30 atm. is allowed to expand to 1 atm pressure. If the volume becomes 10 times its initial volume, the final temperature becomes:

    A) \[100{}^\circ C\]                              

    B)  373 K

    C) \[373{}^\circ C\]                              

    D) \[-173{}^\circ C\]

    Correct Answer: D

    Solution :

                     Ideal gas equation is \[PV=RT\Rightarrow PV\propto T\] Hence,                  \[\frac{{{P}_{1}}{{V}_{1}}}{{{T}_{1}}}=\frac{{{P}_{2}}{{V}_{2}}}{{{T}_{2}}}\]                                           \[\frac{30V}{300}=\frac{1\times 10V}{{{T}_{2}}}\] \[{{T}_{2}}=\frac{300\times 10}{30}=100K=-173{{\,}^{o}}C\]


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