J & K CET Engineering J and K - CET Engineering Solved Paper-2010

  • question_answer
    A system is changed from an initial state to a  final state by a manner such that \[\Delta H=q.\]If the change from the initial state to the final state were made by a different manner then \[\Delta H\]remains same but q changes because

    A)  \[\Delta H\] is a path function and q is a state  function

    B)  \[\Delta H\]is a state function and q is a path function

    C)  Both \[\Delta H\]and q are state function

    D)  Both \[\Delta H\]and q are path function

    Correct Answer: B

    Solution :

     Enthalpy change, \[ie,\]\[\text{ }\!\!\Delta\!\!\text{ H}\]is a state function, \[ie,\]depends only upon the initial and final states, not upon the path followed. While heat, q is a path function, \[ie,\]depends upon the path followed.


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