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The oxygen activity in a liquid metal can be-measured by a concentration cell using stabilised zirconia electrolyte PO2(1) | ZrO2 based solid electrolyte | PO2(2)
Where, PO2(1) is the reference oxygen pressure and PO2(2) is the oxygen pressure in equilibrium with liquid metal. If, F is Faraday constant, the EMF of the cell is equal to

The oxygen activity in a liquid metal can be-measured by a concentration cell using stabilised zirconia electrolyte PO2(1) | ZrO2 based solid electrolyte | PO2(2)
Where, PO2(1) is the reference oxygen pressure and PO2(2) is the oxygen pressure in equilibrium with liquid metal. If, F is Faraday constant, the EMF of the cell is equal to Correct Answer $$ - \frac{{RT}}{{4F}}In\frac{{PO_2^{\left( 2 \right)}}}{{PO_2^{\left( 1 \right)}}}$$

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2. short period equilibrium for a firm under oligopoly
3. long period equilibrium
4. long period equilibrium for a firm under perfect competitions
Select the correct answer