Consider a galvanic cell constructed at 298 K from the half-reactions below.
Cl₂(g) + 2 e⁻ → 2 Cl⁻ E° = +1.36 V
Zn²⁺ + 2 e⁻ → Zn(s) E° = –0.76 V
Solutions in both compartments are 1.0 M in their respective ions. If the observed cell potential is 2.05 V, which of the following is the partial pressure of Cl₂(g) in the chlorine compartment?
a) 9.4×10−2atm
b) 2.6×10−1atm
c) 4.3×10−3atm
d) 6.6×10−2atm