Redox Reactions And Electrochemistry Ques 711
Question: $ Zn|Z{n^{+2}}(C_1)||Z{n^{+2}}(C_2)|Zn $ For this cell $ \Delta G $ is negative if
Options:
A) $ C_1=C_2 $
B) $ C_1>C_2 $
C) $ C_2>C_1 $
D) Both [a] and [c] are correct
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ Zn|Z{n^{+}}(C_1)||Z{n^{+2}}(C_2)|Zn $
$ \therefore $ $ E_{Cell}=-\frac{0.0591}{2}\log \frac{C_1}{C_2} $ For $ \Delta G $ being negative, $ E_{Cell} $ should be positive.
$ \therefore $ $ C_2>C_1 $
