AMU Medical AMU Solved Paper-1996

  • question_answer
    Which of the following conditions will apply to the conversion of ice into water?

    A) \[_{-}^{\Delta H}\,\,\,\,\,\,\,\,\,\,\,\,\,_{-}^{\Delta S}\,\,\,\,\,\,\,\,\,\,\,\,\,_{-}^{\Delta G}\,\,\,\,\,\,\,\,\,\,_{\text{at}\,\text{low}\,\text{T}}^{{}}\]

    B) \[_{-}^{\Delta H}\,\,\,\,\,\,\,\,\,\,\,\,\,_{-}^{\Delta S}\,\,\,\,\,\,\,\,\,\,\,\,\,_{+}^{\Delta G}\,\,\,\,\,\,\,\,\,\,_{\text{at}\,\text{high}\,\text{T}}^{{}}\]

    C) \[_{+}^{\Delta H}\,\,\,\,\,\,\,\,\,\,\,\,\,_{+}^{\Delta S}\,\,\,\,\,\,\,\,\,\,\,\,\,_{+}^{\Delta G}\,\,\,\,\,\,\,\,\,\,_{\text{at}\,\text{low}\,\text{T}}^{{}}\]

    D) \[_{+}^{\Delta H}\,\,\,\,\,\,\,\,\,\,\,\,\,_{+}^{\Delta S}\,\,\,\,\,\,\,\,\,\,\,\,\,_{-}^{\Delta G}\,\,\,\,\,\,\,\,\,\,_{\text{at}\,\text{high}\,\text{T}}^{{}}\]

    Correct Answer: D

    Solution :

    : For\[{{H}_{2}}{{O}_{(s)}}\to {{H}_{2}}{{O}_{(l)}}\] \[\Delta H=+ve,\Delta S=+ve,\Delta G=-ve\] [\[\Delta G=\Delta H-T\Delta S]\]] at high temperature.


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