Table 1 Arrhenius parameters (Ea and lnAct), the entropic factor of Arrhenius—R·ln(Act) from linear regression of Eq. 2, the activation entropy ΔS and Arrhenius temperature (TA).

From: Effect of acid proticity on the thermodynamic parameters of charge transfer resistance in corrosion and passivation of nickel based glass alloy

Acid

Ea/kJ mol−11

ln(Act/Ω cm2)1

– R·lnAct/J.K−1 mol−122

ΔS/J K−1 mol−11*

TA/K22

HCl

52.976

− 12.310

102.35

− 151.0

517.59

H2SO4

83.287

− 24.546

204.09

− 52.0

408.10

H3PO4

102.27

− 31.733

263.84

19.0

387.61

  1. *Calculated via the variation of the charge transfer resistance (Rct/Ω cm2) as a function of temperature (T).
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