RAJASTHAN PMT Rajasthan - PMT Solved Paper-2003

  • question_answer
    An ideal gas has volume V0at \[27{}^\circ C\] It is heated at constant pressure, so/ that its volume becomes \[2{{V}_{0}}.\] Then the final temperature is

    A)  327 K                                   

    B) \[327{}^\circ C\]

    C)  \[54{}^\circ C\]                

    D)         150K

    Correct Answer: B

    Solution :

    For an ideal gas, at constant pressure \[V\propto T\]             \[\therefore \]      \[\frac{{{V}_{2}}}{{{V}_{1}}}=\frac{{{T}_{2}}}{{{T}_{1}}}\Rightarrow {{T}_{2}}=\frac{{{V}_{2}}}{{{V}_{1}}}{{T}_{1}}\]             Given:       \[{{V}_{1}}={{V}_{0,}}{{V}_{2}}=2{{V}_{0}}\]                                 \[{{T}_{1}}=27{}^\circ C=300K\]                                 \[{{T}_{2}}=\frac{2{{V}_{0}}}{{{V}_{0}}}\times 300=600K\]                                                 \[=(600-273K{}^\circ C=327{}^\circ C\]


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