The redox reaction between dicyanobis(bipyridine)iron(III) and iodide ion follows first-order kinetics in 10% (v/v) tertiary butyl alcohol-water. The reaction was found first and zero order in iodide and dicyanobis(bipyridine)iron(III), respectively, at 0.06 M ionic strength and 293 ± 1 K. The thermodynamic parameters of activation such as E A (16.07 kJ mol −1), A (1 × 10 −4 M s −1), ΔH # (13.6 kJ mol −1), ΔS # (−329.81 J K −1 mol −1), and ΔG # (90.1 kJ mol −1) were determined. The effect of the ionic strength on the rate constant leads to recognizing the stabilization or destabilization of the transition state complex that forms during the rate-determining step of the reaction. The value of the zero-order rate constant was decreased with increasing ionic strength that yielded a negative value of the slope in each binary and ternary solvent systems. This negative sign refers to the electron transfer between opposite charge carriers such as [Fe III (bpy) 2 (CN) 2 ] + and I − during the rate-determining step. The destabilization of the transition state complex is surfaced by the increasing slope, that is, 5 < 10 < 15% (v/v) tertiary butyl alcohol-water with a gradual decrease in the rate constant. However, its stability emerges by relatively small values of the slope in 17.5 < 25 ≤ 30% (v/v) tertiary butyl alcohol-water and 8:2:90 < 6:4:90% (v/v) dioxane: tertiary butyl alcohol: water with reasonably fast rate of reaction.

Corona virus a high transmittable diseases which is became a global health threat, has drastic negative psychological impact on human mental health. Aim of the study was to investigate hopelessness, emotional distress, and psychological distress in school teachers during corona virus pandemic. A sample of hundred was taken from different private and government schools of Peshawar which is equally divided to male (n = 50), and female (n = 50). Beck hopelessness scale, perceived emotional distress inventory, and Kessler Psychological Distress Scale were administered to analyze the result. Result of the study shows positive correlation between emotional distress, and psychological distress, negative correlation between hopelessness and emotional distress, and hopelessness and psychological distress. Result also revealed significant difference between male and female scores and shows that male scored higher on Beck Hopelessness Scale, female scored higher on Perceived Emotional Distress Inventory and on Kessler Psychological Distress Sale.