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AMU Medical AMU Solved Paper-2012

  • question_answer
    Henrys law constants for aqueous solution of \[CO,\,{{O}_{2}},\,C{{O}_{2}}\] and \[{{C}_{2}}{{H}_{2}}\] gases are respectively at \[{{25}^{o}}C\] as \[58\times {{10}^{3}},\,43\times {{10}^{3}},1.61\times {{10}^{3}}\] and\[1.34\times {{10}^{3}}\]. The solubility of these gases decreases in the order

    A)  \[CO>{{O}_{2}}>C{{O}_{2}}>{{C}_{2}}{{H}_{2}}\]

    B)  \[{{O}_{2}}>C{{O}_{2}}>CO>{{C}_{2}}{{H}_{2}}\]

    C)  \[{{C}_{2}}{{H}_{2}}>C{{O}_{2}}>{{O}_{2}}>CO\]

    D)  \[{{O}_{2}}>C{{O}_{2}}>{{C}_{2}}{{H}_{2}}>CO\]

    Correct Answer: C

    Solution :

                    \[p={{K}_{H}}X\,;\] Higher the value of \[{{K}_{H}}\] at a given pressure, the lower is the solubility of the gas in the liquid. Therefore, the solubility of the given gases decreases in the order                 \[{{C}_{2}}{{H}_{2}}>C{{O}_{2}}>{{O}_{2}}>CO\]


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