4. Using the Langmuir equation, determine the adsorption of propionic acid, the surface tension of the solution of which is 55.6 mJ/m2. The acid concentration in the solution is 0.5 mol/l, the coefficient b in the Langmuir equation is 7.73 l/mol. The surface tension of water is 71.96 mJ/m2.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.