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BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    Compute the number of moles and in 1.00 \[c{{m}^{2}}\]of an ideal gas at a pressure of 100 Pa and a temperature of 220 K

    A)  \[3.35\times {{10}^{-8}}mol\]   

    B)  \[4.57\times {{10}^{-7}}mol\]

    C)  \[5.47\times {{10}^{-8}}mol\]  

    D) \[2.75\times {{10}^{-8}}mol\]

    Correct Answer: C

    Solution :

                     Solve the ideal gas law\[pV=nRT\] for n \[n=\frac{pV}{RT}=\frac{(100)(1.0\times {{10}^{-6}})}{8.31\times 220}\] \[n=5.47\times {{10}^{-8}}mol\]


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