# Problem: Consider the following equation for an electrochemical cell reaction.H2(s) + PbCI2(s) ⇌ Pb(s) + 2HCl(aq) Predict the immediate effect of the following changes on the observed cell voltage, E.Increased E          Decreased E          No change in Eincrease the temperaturedissolve NaOH into the solutionincrease the amount of PbCl2dilute the solution by adding H2O

###### FREE Expert Solution

The Gibbs free energy change determines the voltage of an electrochemical cell. This, in turn, depends on factors such as concentration, gas pressure, and temperature.

Equation 1:

ΔG° = Gibbs Free Energy, J
R = gas constant = 8.314 J/(molK)
T = temperature, K
K = equilibrium constant

Equation 2:

95% (242 ratings) ###### Problem Details

Consider the following equation for an electrochemical cell reaction.

H2(s) + PbCI2(s) ⇌ Pb(s) + 2HCl(aq)

Predict the immediate effect of the following changes on the observed cell voltage, E.

Increased E          Decreased E          No change in E

increase the temperature

dissolve NaOH into the solution

increase the amount of PbCl2

dilute the solution by adding H2O