Question
What is CMC? List the factors affecting it.
Answer :
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Critical micelle concentration (CMC) is the specific concentration of surfactant molecules in a solution at which micelles start to form. Below this concentration, surfactant molecules exist primarily as individual monomers dispersed in the solvent. As the concentration increases and reaches the CMC, the molecules aggregate spontaneously to form micelles, which are organized structures where the hydrophobic tails cluster inward and the hydrophilic heads face the surrounding solvent. The formation of micelles reduces the free energy of the system by minimizing unfavorable interactions between the hydrophobic parts and the aqueous
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