What benefit do we get by forming a thin laye | vedclass

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(A) In a conductivity cell,the electrodes are typically made of platinum $(Pt)$ coated with finely divided platinum black. This coating of $Pt$ partic

Vedclass · Accepted Answer

It increases the surface area of the electrodes.

Vedclass · Answer

(A) In a conductivity cell,the electrodes are typically made of platinum $(Pt)$ coated with finely divided platinum black. This coating of $Pt$ particles significantly increases the effective surface area of the electrodes. By increasing the surface area,the polarization effect at the electrode-electrolyte interface is minimized,which ensures more accurate and stable measurements of the electrolytic conductivity.

What benefit do we get by forming a thin layer of $Pt$ particles on the electrodes of a conductivity cell?

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