NEET Sample Paper NEET Sample Test Paper-40

  • question_answer
    If 300 ml of a gas at\[27{}^\circ \]is cooled to\[7{}^\circ \]at constant pressure, then its final volume will be

    A)  540 ml

    B)  350 ml

    C)  280 ml

    D)  135 ml

    Correct Answer: C

    Solution :

    \[V\propto T\]at constant pressure \[\Rightarrow \]\[\frac{{{V}_{1}}}{{{V}_{2}}}=\frac{{{T}_{1}}}{{{T}_{2}}}\Rightarrow {{V}_{2}}=\frac{{{V}_{1}}{{T}_{2}}}{{{T}_{1}}}=\frac{300\times 280}{300}=280\,ml\]


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