The surface tension of pure water is 72 dyne/cm at 20C. You are provided with two...

The surface tension of pure water is 72 dyne/cm at 20C. You are provided with two surfactants, A and B. A 1% solution of surfactant A reduced the surface tension of water to 35 dynes/cm and a 1% solution of surfactant B reduces the surface tension to 44.5 dynes/cm. Now, let's assume that you are making two foams using surfactants A and B. The total interfacial area of the foam in both cases is 600 cm^2. What is the interfacial energy difference between these two foams? Which one will be more stable?

Expert Solution

queen_honey_blossom answered 1 year ago

Pure water has a surface tension of 0.0728?/?. Soap water has a surface tension of 0.025?/?....

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