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JEE Main & Advanced Sample Paper JEE Main Sample Paper-17

  • question_answer
    The total pressure of a sample of methane collected over water is 735 torr at\[\text{29}{{\,}^{\text{o}}}\text{C}\text{.}\] The aqueous tension at \[\text{29}{{\,}^{\text{o}}}\text{C}\text{.}\] pressure exerted by dry methane?

    A)  605 torr              

    B)  205 torr

    C)  405 torr              

    D)  705 torr

    Correct Answer: D

    Solution :

     \[\text{P}{{ & }_{\text{total}}}\text{= }{{\text{P}}_{\text{dry}\,\text{methane}}}\text{+ }{{\text{P}}_{\text{water}}}\] \[735={{P}_{\text{dry}\,\text{methane}}}+30\] \[{{P}_{\text{dry}\,\text{methane}}}=735-30=705\,\text{torr}\text{.}\]


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