Redox Reactions And Electrochemistry Question 472
Question: If the $ Z{n^{2+}}/Zn $ electrode is diluted to 100 times then the change in e.m.f. [DPMT 2005]
Options:
A) Increase of $ 59,mV $
B) Decrease of $ 59,mV $
C) Increase of $ 29.5,mV $
D) Decrease of $ 29.5,mV $
Show Answer
Answer:
Correct Answer: A
Solution:
$ E_{cell}=\frac{0.059}{n}\log \frac{1}{C}=-\frac{0.059}{2}\log \frac{1}{100} $ $ =-\frac{0.059}{2}(-2)=0.059V=59mV $ . (increase)
BETA
