Question

mention two properties of the ionic surfactant solution which undergo abrubt change at cmc​

Answer 1

Explanation:

There are several factors affecting the CMC point of a surfactant. These include the amphiphile chain length, dissolved salts, the structure of the head group, temperature, the structure of the alkyl chain and polar additives.

For example, the value of CMC for sodium dodecyl sulfate in water (no other additives or salts) at 25 °C, atmospheric pressure, is 8x10−3 mol/L. With increase in concentration of surfactant there will be decrease in surface tension

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