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11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    ?The quantity of heat which must be supplied to decompose a compound into its element is equal to the heat evolved during the formation of that compound from the elements.? This statement is known as

    A)                 Hess's law

    B)                 Joule's law

    C)                 Le?chatelier's principle

    D)                 Lavoiser and Laplace law

    Correct Answer: D

    Solution :

                    It is Lavoisier and Laplace law. This is another law of thermochemistry which was put forward before Hess's law.


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