Surfactant molecules can cluster together as micelles, which are colloid sized cluster of molecules. Micelles form only above critical micelle concentration (CMC) and above certain temperature called Kraft temperature.∆H of micelle formation can be positive or negative. Which is false about micelle formation?

Surfactant molecules can cluster together as micelles, which are colloid sized cluster of molecules. Micelles form only above critical micelle concentration (CMC) and above certain temperature called Kraft temperature.H of micelle formation can be positive or negative. Which is false about micelle formation?

  1. A

    S of micelle formation is positive

  2. B

    the hydrophobic part lie towards interior of micelle

  3. C

    the hydrophilic part lie towards surface of micelle

  4. D

    S of micelle formation is negative

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    Solution:

    The formation of micelle only above certain temperature called Kraft temperature suggests positive S of micelle formation which even overcome effect of positive H of micelle formation. Besides kinetic effect also become important at high temperature.

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