A) Plot at one picture curves of surface tension isotherms for formic, acetic and butyric acids. Explain the character of changing.

b) Plot at one picture curves of Gibbs’s adsorption isotherms for methanol, ethanol and propanol. Explain the difference and similarity of isotherms.

c) Find surface phenomena from the following order: spherical form of drops, crystal growth, absorption, osmosis, colligative properties, diffusion, adsorption, hemosorption.