Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    What is density of\[S{{O}_{2}}\]gas at\[27{}^\circ C\]and 2 arm pressure? (Atomic weight\[S=32,\text{ O}=16,\] \[R=0.0821\text{ }L\text{ }atm\text{ }{{K}^{-1}}mo{{l}^{-1}}\])

    A)  5.0246

    B)  4.1246

    C)  3.0196

    D)  5.1969

    Correct Answer: D

    Solution :

    \[d=\frac{pM}{RT}\] \[=\frac{2\text{ }atm\times 64\text{ }g\text{ }mo{{l}^{-1}}}{0.0821\text{ }L\text{ }atm\text{ }{{K}^{-1}}\text{ }mo{{l}^{-1}}\times 300\text{ }K}\] \[=5.1969\text{ }g{{L}^{-1}}\]


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