Passage III
An electrochemical cell (Figure 1) is constructed with an anode, a strip of zinc (Zn) placed in a solution of zinc ions (Zn2+), and a cathode, a strip of copper (Cu) or silver (Ag) placed in a solution of copper ions (Cu2+) or silver ions (Ag1+) , respectively. The solutions are connected by a salt bridge (a tube filled with a solution containing nitrate ions). The anode and cathode are connected to a voltmeter. Tables 1 and 2 show how the mass (g) of the anode or cathode, concentrations (M) of the ionic solutions, and temperature (°C), affect the voltage difference(V) between Zn and either Cu or Ag.
16. Based on the data in Table 2, what would the voltage difference of Cell 6 most likely be at 100℃?
Your Answer is
Correct Answer is J
Explanation
By comparing Cell 8 and Cell 9, it is found that as the temperature increases, the voltage difference increases. So when the temperature of Cell 6 changes to 100°C, the voltage difference will be greater than 1560, and the J option meets