In a direct formic acid fuel cell, formic acid (HCOOH) is
oxidised into carbon dioxide and water over an alloy nanoparticle
catalyst. The standard reduction potential for O2 is +1.23 V and
for the reduction of CO2 to HCOOH is -0.25 V. (a) Write down
balanced equations for each half-cell reaction and the overall cell
reaction. Calculate the standard potential of the cell. (b) Under
operating conditions, the concentration of HCOOH is 5.0 mol dm-3,
and the pressures of O2...