JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry
For micelle formation, which of the following statements are correct? \((A)\) Micelle formation is an exothermic process. \((B)\) Micelle formation is an endothermic process. \((C)\) The entropy change is positive. \((D)\) The entropy change is negative.
- A \(A\) and \(D\) only
- B \(A\) and \(C\) only
- C \(B\) and \(C\) only
- D \(B\) and \(D\) only
Answer & Solution
Correct Answer
(C) \(B\) and \(C\) only
Step-by-step Solution
Detailed explanation
For micelle formation, \(\Delta S >0\) (hydrophobic effect) This is possible because, the decrease in entropy due to clustering is offset by increase in entropy due to desolvation of the surfactant, Also \(\Delta H >0\)
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