2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Thermodynamics / रासायनिक उष्मागतिकी

JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Heat of reaction

  • question_answer
    Enthalpy of neutralisation of acetic acid by \[NaOH\] is \[-50.6\,kJ/mol.\] and the heat of neutralisation of a strong acid with a strong base is ? 55.9 kJ/mol. What is the value of \[\Delta H\] for the ionisation of \[C{{H}_{3}}COOH\]       [AIIMS 2000]

    A)                 + 5.3 kJ/mol       

    B)                 + 6.2 kJ/mol

    C)                 + 8.2 kJ/mol       

    D)                 + 9.3 kJ/mol

    Correct Answer: A

    Solution :

           \[\Delta H=\,\Delta {{H}_{\text{ioniz}}}+\Delta {{H}_{\text{n}eu}}\] = \[-\,50.6\,\,=\,\Delta {{H}_{\text{ioniz}}}+(-55.9)\]                                 \[\Delta {{H}_{\text{ioniz}}}=+\,5.3\,kJ/mol\].


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