`Pt(H_(2))(1atm)|H_(2)O`, electrode potential at `298K` is

For Pt(H_(2))|H_(2)O , reduction potential at 298 K and 1 atm is :

For Pt(H_(2))|H_(2)O , reduction potential at 298 K and 1 atm is :

For the half-cell given Pt( H_(2) , 1 atm ) | H^+ pH = 2, the cell potential is :

For the half-cell given Pt( H_(2) , 1 atm ) | H^+ pH = 2, the cell potential is :

The pressure of H_(2) required to make the potential of H_(2^(-)) electrode zeno in pure water at 298 K is

For the cell Pt||H_2(0.4atm)|H^+(pH=1)||(H^+(pH=2)|H_2(0.1atm)|Pt The measured potential at 25^(@)C is

The pressure of H_(2) required to make the potential of H_(2) - electrode zero in pure water at 298 K is -