The dissolution of the polar polymer, polyacrylamide (PAM), in water is studied kinetically. The rate of dissolution, S over dot, of PAM is determined by means of measuring the conductivity of water as dissolution of the polymer proceeds. The thickness of the swollen surface layer, delta, and the rate of swelling, W over dot, are determined with the aid of penetration and followed surface track by conductometric electrode. A kinetic equation reflecting PAM dissolution in water is obtained directly as 2S over dot + W over dot = (D) over bar(s)/delta, where (D) over bar(s) is the average diffusion coefficient of solvent in polymer and is shown to be true in cases of nonpolar as well as polar polymers.