CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2007

  • question_answer
    One mole of oxygen at 273 K and one mole of sulphur dioxide at 546 K are taken in two separate containers, then,

    A)  kinetic energy of \[{{O}_{2}}>\] kinetic energy of\[S{{O}_{2}}\]

    B)  kinetic energy of \[{{O}_{2}}<\] kinetic energy of\[S{{O}_{2}}\]

    C)  kinetic energy of both are equal

    D)  None of the above

    Correct Answer: B

    Solution :

                    \[KE=\frac{3}{2}RT\]                 \[KE\propto T\] \[\frac{K{{E}_{{{O}_{2}}}}}{K{{E}_{S{{O}_{2}}}}}=\frac{{{T}_{{{O}_{2}}}}}{{{T}_{S{{O}_{2}}}}}=\frac{273}{546}=\frac{1}{2}\]                 \[K{{E}_{S{{O}_{2}}}}=2\,K{{E}_{{{O}_{2}}}}\] \[\therefore \]  \[K{{E}_{S{{O}_{2}}}}>2\,K{{E}_{{{O}_{2}}}}\]


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