Question 1
Which of the following statements is true about a voltaic cell for which E°cell = –1.00 V?
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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
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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.
Plant cell water potential.
Forms of Cell signalling
animal cell
How a Cell is Seen
Cell
Activation and Clonal Selection of a Helper T Cell