Author Question: Which of the following statements is true concerning the electrochemical cell depicted below?Mg | ... (Read 53 times)

123654777 · **on:** Mar 21, 2021

Question 1

Which of the following statements is true about a voltaic cell for which E°_cell = –1.00 V?

◦ It has ΔG° < 0.
◦ The system is at equilibrium.
◦ It has K = 1.
◦ The cathode is at a higher energy than the anode.
◦ The reaction is nonspontaneous.

Question 2

Which of the following statements is true concerning the electrochemical cell depicted below?
Mg | Mg²⁺(aq) || Ni²⁺(aq) | Ni
Mg²⁺(aq) + 2e^–→ Mg(s); E° = –2.38 V
Ni²⁺(aq) + 2e^–→ Ni(s); E° = –0.23 V

◦ The cell reaction is spontaneous with a standard cell potential of 2.15 V.
◦ The cell reaction is spontaneous with a standard cell potential of 2.61 V.
◦ The cell reaction is nonspontaneous with a standard cell potential of –2.15 V.
◦ The cell reaction is nonspontaneous with a standard cell potential of –2.61 V.
◦ The cell is at equilibrium.

karmakat49 · **Reply #1 on:** Mar 21, 2021

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