2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2005

  • question_answer
    What would be the heat released when an aqueous solution containing 0.5 mole of\[HN{{O}_{3}}\]is mixed with 0.3 mole of\[O{{H}^{-}}\](enthalpy of neutralization is\[-57.1\text{ }kJ\])?

    A) 28.5 kJ                                  

    B) 17.1 kJ

    C) 45.7 kJ                  

    D)        1.7 kJ

    E) 2.85 kJ

    Correct Answer: C

    Solution :

    0.5 mol\[HN{{O}_{3}}=0.5\]mol\[{{H}^{+}}\] and\[0.3\text{ }mol\text{ }O{{H}^{-}}\] \[0.5\,{{H}^{+}}(aq)+0.3\,{{H}^{-}}(aq)\xrightarrow{{}}0.5\,{{H}_{2}}O(l)\]         \[\Delta H=0.8\times 57.1\] \[=45.68\text{ }kJ\] \[=45.7\text{ }kJ\]


You need to login to perform this action.
You will be redirected in 3 sec spinner