2/10 Flashcards

1
Q

How do we increase current?

A
  1. Change temp to change diffusion coefficient d
  2. Change conc of oxidants at bulk or at surface (Cs or Cb)
  3. Make δ small by using convection
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2
Q

What is the only way to change potential?

A

Change current

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3
Q

When do the oxidation and reduction reactions have different slopes on a polarization diagram?

A

When the symmetric variable a doesnt equal 0.5

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4
Q

Why do we want a large β?

A

So current doesnt increase with potential/no corrosion/there is a vertical slope

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5
Q

E ______ as H+ is depleted at the metals surface. This is known as _____

A

Decreases; ηconc

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