11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    Hess law deals with         [BHU 1979]

    A)                 Changes in heat of reaction

    B)                 Rate of reaction

    C)                 Equilibrium constant

    D)                 Influence of pressure on volume of a gas

    Correct Answer: A

    Solution :

                    It is also known as "constant heat summation" law. It state that the total amount of heat evolved or absorbed in a reaction is same whether the reaction takes place in one step or in a number of steps.


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