(1) A theory of the rate of solution of gas into liquid was proposed, which is based upon the assumptions that among the molecules of gas, which collide with the interface, only those, whose components of velocities at right angles to the interface are greater than a threshold value u0, can enter into the liquid phase, and that among the molecules of gas in the liquid phase, only those which collide with the interface with velocities, whose components at right angles to the interface are greater than a threshold value u0′, can escape the liquid phase. (2) A short discussion of the theory in comparison with the old theories was described. (3) Rate of oxidation of sodium sulphite solution, which will be difficult to be explained by the old theory, was interpreted by the new theory.
(1) The relation between ethane and oxidizing substances in the solutions formed by the electrolyses of acetate solutions is discussed. (2) It is demonstrated that acetyl peroxide is first formed at the anode, and that ethane is one of its decomposition products. (3) The presence of hydrogen peroxide in the solutions after electrolysis is attributed to the following hydrolyses of acetyl peroxide: (CH_3·COO)_2+H_2O &=CH_3·COOH+CH_3·COOOH, CH_3·COOOH+H_2O &=CH_3·COOH+H_3O_2. (4) It is discussed how the formation of hydrogen peroxide is related to the pH value of the solution on the one hand and to the concentration of the solution on the other. (5) The relation existing between the ethane and the hydrogen peroxide formations is also discussed. (6) It is concluded that the facts observed in the experiments so far carried out by the writer can well be explained by assuming the intermediate formation of acetyl peroxide.