We’re being asked to determine which of the given statements apply to a voltaic cell.
Recall that a voltaic or galvanic cell is an electrochemical cell that is spontaneous and produces electricity. On the other hand, an electrolytic cell is nonspontaneous.
Recall that if:
• ΔG < 0 or ΔG = (–); the reaction is spontaneous
• ΔG > 0 or ΔG = (+); the reaction is non-spontaneous
Which statement is true of all functioning voltaic cells?
a) Both Ecell and ∆G are negative
b) Both Ecell and ∆G are positive
c) Ecell is negative and ∆G is positive
d) Ecell is positive and ∆G is negative
e) None of the above must be true
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