H P Agarwal
Articles written in Proceedings – Section A
Volume 32 Issue 6 December 1950 pp 416-420
Volume 33 Issue 1 January 1951 pp 66-70
The work of Breyer and Gutmann on the effect of superimposing alternating fields on the reduction processes occurring at the dropping mercury electrode, has been extended to lead solutions. The work has been done at different frequencies of the alternating field. All the results obtained are interpretable on the basis of the diminution in the overall capacitative impedance of the dropping electrode as the half-wave potential is approached as well as when the frequency of the alternating field increases. These results are largely confirmed by direct observations on phase shifts by means of the oscillograph.
Volume 34 Issue 4 October 1951 pp 229-235
It has been shown that the redoxokinetic effect is a general phenomenon. The effect of redox ratio on the redoxokinetic potential has been discussed.
Volume 34 Issue 4 October 1951 pp 263-271
The theory of the redoxokinetic effect has been formulated for smale a.c. fields. One interesting result coming out of the theory is that the redoxokinetic potential is proportional to the square of the a.c. field. Experiments have been done with the ferrous-ferric system which confirm the above theoretical result. From the observed values of the redoxokinetic potential it has been possible for the first time to get a general method for the d-l termination of “
Volume 35 Issue 1 January 1952 pp 45-45 Erratum
Volume 56 Issue 2 August 1962 pp 108-114
The value of energy and entropy of activation, obtained by applying the theory of absolute reaction rates for the diffusion of ·002 M ferric ion in 1-N sulphuric acid at varying temperatures, is found to be 9·8 K-cals. and −23·8 cal./degree respectively. The negative value of entropy of activation can be explained due to stronger polarization of the solvent by the enhanced electrostatic field, which is caused as a result of approaching of the two reactants of like sign towards each other.