Molten salt and ceramic electrolytes can exhibit electronic conduction which can cause serious pressure independent can be expressed as i(S/m)=1.7585104e77,400/RT whereas n-type electronic conductivity which appears in reducing atmospheres (low PO2) is given by n(S/m)=6.16106PO21/4e310,000/RT a) In a fuel cell operating at 1000C with POO2=1020 atm at the fuel electrode, the problem is manageable for YSZ. What is the electronic transport number? b) However, when used as an oxygen sensor in liquid steel at 1600C, the problem becomes much more severe. What now is the electronic transport number assuming the oxygen dissolved in steel is equivalent to PO2=1012atm