NEET Exam > NEET Questions > For the half-cell,at 298K electrode potential...
Start Learning for Free
For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For the half-cell,at 298K electrode potential has maximum value when K...
Explanation:
In order to understand why the electrode potential has a maximum value when the concentration of KCl is 0.01 M, we need to consider the Nernst equation and the concept of activity.
The Nernst equation relates the electrode potential (E) to the concentrations (or activities) of the species involved in the half-cell reaction. It is given by:
E = E° - (RT/nF) * ln(Q)
Where:
- E is the electrode potential
- E° is the standard electrode potential
- R is the gas constant (8.314 J/(mol·K))
- T is the temperature in Kelvin
- n is the number of electrons transferred in the half-cell reaction
- F is the Faraday constant (96500 C/mol)
- Q is the reaction quotient, which is the ratio of product concentrations to reactant concentrations raised to their stoichiometric coefficients.
Effect of Concentration:
The concentration of KCl affects the reaction quotient (Q) in the Nernst equation. As the concentration of KCl increases, the concentration of K+ ions also increases, which affects the activity of K+. The activity of an ion is a measure of its effective concentration, taking into account factors such as ionic strength and ion-ion interactions.
Effect on Electrode Potential:
When the concentration of KCl is very low (0.01 M), the activity of K+ ions is close to their concentration. As a result, the reaction quotient (Q) in the Nernst equation is closer to 1, and the logarithmic term in the equation becomes small. This leads to a higher electrode potential.
On the other hand, when the concentration of KCl is very high (1 M), the activity of K+ ions significantly deviates from the concentration due to increased ionic interactions and ionic strength. This results in a larger value for the logarithmic term in the Nernst equation, leading to a lower electrode potential.
Therefore, the electrode potential has a maximum value when the concentration of KCl is 0.01 M, as this concentration provides the optimal conditions for the activity of K+ ions and minimizes deviations from the concentration.
Conclusion:
In summary, the electrode potential has a maximum value when the concentration of KCl used is 0.01 M. This is because at this concentration, the activity of K+ ions is close to their concentration, leading to a smaller logarithmic term in the Nernst equation and a higher electrode potential.
In order to understand why the electrode potential has a maximum value when the concentration of KCl is 0.01 M, we need to consider the Nernst equation and the concept of activity.
The Nernst equation relates the electrode potential (E) to the concentrations (or activities) of the species involved in the half-cell reaction. It is given by:
E = E° - (RT/nF) * ln(Q)
Where:
- E is the electrode potential
- E° is the standard electrode potential
- R is the gas constant (8.314 J/(mol·K))
- T is the temperature in Kelvin
- n is the number of electrons transferred in the half-cell reaction
- F is the Faraday constant (96500 C/mol)
- Q is the reaction quotient, which is the ratio of product concentrations to reactant concentrations raised to their stoichiometric coefficients.
Effect of Concentration:
The concentration of KCl affects the reaction quotient (Q) in the Nernst equation. As the concentration of KCl increases, the concentration of K+ ions also increases, which affects the activity of K+. The activity of an ion is a measure of its effective concentration, taking into account factors such as ionic strength and ion-ion interactions.
Effect on Electrode Potential:
When the concentration of KCl is very low (0.01 M), the activity of K+ ions is close to their concentration. As a result, the reaction quotient (Q) in the Nernst equation is closer to 1, and the logarithmic term in the equation becomes small. This leads to a higher electrode potential.
On the other hand, when the concentration of KCl is very high (1 M), the activity of K+ ions significantly deviates from the concentration due to increased ionic interactions and ionic strength. This results in a larger value for the logarithmic term in the Nernst equation, leading to a lower electrode potential.
Therefore, the electrode potential has a maximum value when the concentration of KCl is 0.01 M, as this concentration provides the optimal conditions for the activity of K+ ions and minimizes deviations from the concentration.
Conclusion:
In summary, the electrode potential has a maximum value when the concentration of KCl used is 0.01 M. This is because at this concentration, the activity of K+ ions is close to their concentration, leading to a smaller logarithmic term in the Nernst equation and a higher electrode potential.
Community Answer
For the half-cell,at 298K electrode potential has maximum value when K...
C is correct bro
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Top Courses for NEETView all
For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer?
Question Description
For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer?.
For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer?.
Solutions for For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer?, a detailed solution for For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice For the half-cell,at 298K electrode potential has maximum value when KCl used is a)1 M b)0.1 M c)0.01 M d)10 M Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup