11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    Enthalpy of formation of two compounds x and y are ? 84 kJ and ? 156 kJ respectively. Which of the following statements is correct     [CBSE PMT 2001]

    A)                 x is more stable than y

    B)                 x is less stable than y

    C)                 Both x and y are unstable

    D)                 x and y are endothermic compounds

    Correct Answer: B

    Solution :

              The compound Y possess less energy than the X and thus Y is more stable than X.


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