All experiments were carried out at 298.15 +/- 0.1 K but in estimations the value of temperature of 293.15 K (20 degreesC) was introduced by mistake. Below please find the corrected captions for Figs. 2 and 3 including results estimated for the proper value of 298.15 K. After recalculating all partial derivative alpha (i)/partial derivativeE, the values differ not more than +/- 0.01-0.02 and are not greater than the confidence interval given. The remaining information, including experimental and theoretical results as well as conclusions, remains unchanged.