JEE Main & Advanced Chemistry States of Matter Question Bank Ideal gas equation and Related gas laws

  • question_answer A pre-weighed vessel was filled with oxygen at N.T.P. and weighted. It was then evacuated, filled with \[S{{O}_{2}}\] at the same temperature and pressure, and again weighted. The weight of oxygen will be        [NCERT 1989]

    A)                 The same as that of \[S{{O}_{2}}\]

    B)                 \[\frac{1}{2}\]that of\[S{{O}_{2}}\]

    C)                 Twice that of\[S{{O}_{2}}\]

    D)                 One fourth that of\[S{{O}_{2}}\]

    Correct Answer: B

    Solution :

               \[\frac{M.\,wt.\,of\,{{O}_{2}}}{M.\,wt.\,of\,S{{O}_{2}}}\Rightarrow \frac{{{M}_{1}}}{{{M}_{2}}}\Rightarrow \frac{32}{64}=\frac{1}{2}\]                                 The weight of oxygen will be \[\frac{1}{2}\]that of \[S{{O}_{2}}\]

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