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BVP Medical BVP Medical Solved Paper-2006

  • question_answer
    The value of \[\Delta {{H}_{O-H}}\] n is\[109\text{ }kcal\text{ }mo{{l}^{-1}}\]. Then formation of one mole of water in gaseous state from H(g) ang O(g) is accompanied by:

    A)  absorption of 218 kcal of energy

    B)  release of 218 kcal of energy

    C)  release of 109 kcal of energy

    D)  unpredictable

    Correct Answer: B

    Solution :

                    In water \[2(O-H)\] bonds are formed. So, the value of \[\Delta H\] for the formation of one mole of water in gaseous state is\[\Delta H=-2\times 109\]\[=-218kcal\]


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