Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

  • question_answer
    A balloon contains\[500\text{ }{{m}^{3}}\]of Heat\[27{}^\circ C\]and 1 atmospheric pressure. The volume of Heat\[-3{}^\circ C\]and 0.5 atmospheric pressure will be

    A)  \[700{{m}^{3}}\]       

    B)  \[900{{m}^{3}}\]

    C)  \[1000{{m}^{3}}\]       

    D)  \[500{{m}^{3}}\]

    Correct Answer: B

    Solution :

     Using standard gas equation, \[\frac{{{P}_{1}}{{V}_{1}}}{{{T}_{1}}}=\frac{{{P}_{2}}{{V}_{2}}}{{{T}_{2}}}\] Or \[{{V}_{2}}=\frac{{{P}_{1}}{{V}_{1}}{{T}_{2}}}{{{P}_{2}}{{T}_{1}}}\] \[\therefore \] \[{{V}_{2}}=\frac{1\times 500\times (273-3)}{0.5\times (273+27)}\] \[{{V}_{2}}=\frac{1\times 500\times 270)}{0.5\times 300}\] \[{{V}_{2}}=900{{m}^{3}}\]


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