CMC Medical CMC-Medical VELLORE Solved Paper-2010

  • question_answer
    Surface tension vanishes at

    A)  absolute zero temperature       

    B)  transition temperature

    C)  critical temperature

    D)  constant temperature

    E)  None of the above

    Correct Answer: C

    Solution :

                    The surface tension of liquids decreases with increase of temperature. For small temperature difference it decreases almost linearly. The surface tension of a liquid becomes zero at a particular temperature, called the critical temperature of that liquid.


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