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BVP Medical BVP Medical Solved Paper-2014

  • question_answer
    The enthalpy of dissolution of \[\Delta {{S}^{o}}\] and \[\frac{x}{m}=k{{p}^{1/n}},\] are \[2B{{r}^{-}}(aq)+C{{l}_{2}}(aq)\to 2C{{l}^{-}}(aq)+B{{r}_{2}}(aq)\] and \[NaBr\] per mole  respectively. The enthalpy of hydration for, \[C{{l}_{2}}\]is

    A)  \[B{{r}^{-}}\]                    

    B)  \[50mL\]            

    C)  \[1200mL\]                       

    D)  \[30mL\]

    Correct Answer: B

    Solution :

                    \[-152\,kJ\,\,mo{{l}^{-1}}\]\[-76\,kJ\,mo{{r}^{-1}}\]          ??.(i)                 \[5mL\]\[A{{s}_{2}}{{S}_{3}}\]          ??.(ii) Eq. (i) can be split as \[2Ag+2HCl+(O)\xrightarrow{{}}2AgCl+{{H}_{2}}O\]\[2Zn+{{O}_{2}}\xrightarrow{{}}2ZnO\] \[2Zn+{{O}_{2}}\xrightarrow{{}}2ZnO\]\[N{{i}_{2}}{{O}_{2}}(s)+{{H}_{2}}O(l)+2{{e}^{-}}2NiO(s)+2O{{H}^{-}}\]                                 \[{{E}^{o}}=+0.40V\]                                 \[FeO(s)+{{H}_{2}}O(l)+2{{e}^{-}}Fe(s)+2O{{H}^{-}};\]                                 \[{{E}^{o}}=-8.87V\]


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