Consider a graph of Ecell (vertical axis) versus Temperature, T (horizontal axis) for the cell reaction Pb (s) + Cu2+ (aq) → Pb2+ (aq) + Cu (s).
a. What is the expression for the slope of the graph?
b. What is the expression for the y-intercept of the graph?
c. If the y-intercept is negative, what is true about the cell reaction?
d. If the voltage increases as the temperature increases, what must be true about the cell reaction?