2. Questions Bank
  3. 11th Class
  4. Physics
  5. Thermodynamical Processes

11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    For which one of the following reactions, \[\Delta H\] is not equal to \[\Delta E\]              [IIT JEE 1995]

    A)                 \[{{H}_{2(g)}}+{{I}_{2(g)}}\]⇌ \[2H{{I}_{(g)}}\]

    B)                 \[{{C}_{(s)}}+{{O}_{2(g)}}\]⇌\[C{{O}_{2(g)}}\]

    C)                 \[{{N}_{2(g)}}+3{{H}_{2(g)}}\]⇌\[2N{{H}_{3(g)}}\]

    D)                 \[HC{{l}_{(aq)}}+NaO{{H}_{(aq)}}\]⇌\[NaC{{l}_{(aq)}}+{{H}_{2}}O\]

    Correct Answer: C

    Solution :

              In this reaction \[\Delta n=2-4=-2\] so \[\Delta H\ne \Delta E\].


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