NEET Solved Paper 2019 Question 18

Question: For a cell involving one electron $ E_cell^{\Theta }=0.59Vat298K $ , the equilibrium constant for the cell reaction is: [NEET 5-5-2019] [Given that $ \frac{2.303kT}{F}=0.059VatT=298K $ ]

Options:

A) $ 1.0\times 10^{10} $

B) $ 1.0\times 10^{30} $

C) $ 1.0\times 10^{2} $

D) $ 1.0\times 10^{5} $

Show Answer

Answer:

Correct Answer: A

Solution:

$ E_cell^{o}=\frac{0.06}{n}{\log _{10}}k $

$ 0.6=\frac{0.06}{1}{\log _{10}}k $

$ {\log _{10}}k=10 $

$ k=10^{10} $