Q4: A steel plate was immersed into aerated acid solution. Find the following, for both a stagnant and flowing conditions: 1- Corrosion potential 2- Corrosion rate expressed in mmpy 3- Type and magnitude of polarization for each electrode measured from its E. 4- The chemical reactions which occurs at each electrode Given: The limiting diffusion current density for oxygen reduction in the stagnant and flowing conditions are 5 x 10-6 A cm2 and 5 x 105 A cm respectively. B, = B = 0.2 v E. (Fe/Fe*2 = -0.44 V(SHE), I. (Fe/Fe*2) = 10 A cm2 E. (H/H) = 0.0V(SHE). 1. (H/H*)/Fe = 10 A cm E. (O, reduction) = 1.23 V(SHE), 1. (O reduction) /Fe = 7x107 A cm? For Fe: atomic mass = 55.85, density = 7.8g/cm Q4: A steel plate was immersed into aerated acid solution. Find the following, for both a stagnant and flowing conditions: 1- Corrosion potential 2- Corrosion rate expressed in mmpy 3- Type and magnitude of polarization for each electrode measured from its E. 4- The chemical reactions which occurs at each electrode Given: The limiting diffusion current density for oxygen reduction in the stagnant and flowing conditions are 5 x 10-6 A cm2 and 5 x 105 A cm respectively. B, = B = 0.2 v E. (Fe/Fe*2 = -0.44 V(SHE), I. (Fe/Fe*2) = 10 A cm2 E. (H/H) = 0.0V(SHE). 1. (H/H*)/Fe = 10 A cm E. (O, reduction) = 1.23 V(SHE), 1. (O reduction) /Fe = 7x107 A cm? For Fe: atomic mass = 55.85, density = 7.8g/cm