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Read the passage given below and answer the following questions:
The cell constant is usually determined by measuring the resistance of the cell containing a solution whose conductivity is already known. For this purpose, we generally use KCl solutions whose conductivity is known accurately at various concentrations and at different temperatures. Consider the resistance of a conductivity cell filled with 0.1 M KCl solution is 200 Ohm. If the resistance of the same cell when filled with 0.02 M KCl solution is 420 Ohm. (Conductivity of 0.1 M KCl solution is 1.29 S m–1.)
The following questions are Multiple Choice Questions. Choose the most appropriate answer:
Q. What will happen to the conductivity of the cell with the dilution?
  • a)
    First decreases then increases
  • b)
    Increases
  • c)
    First increases then decreases
  • d)
    Decreases
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Read the passage given below and answer the following questions:The c...
The conductivity decreases with dilution.
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Most Upvoted Answer
Read the passage given below and answer the following questions:The c...
Explanation:

The given passage states that the cell constant is determined by measuring the resistance of a cell containing a solution with known conductivity. In this case, KCl solutions of different concentrations are used to determine the cell constant.

The resistance of a conductivity cell filled with a 0.1 M KCl solution is given as 200 Ohm, and the resistance of the same cell when filled with a 0.02 M KCl solution is given as 420 Ohm.

Calculation:
We can use the formula for conductivity, which is given as:

Conductivity = 1 / Resistance

The conductivity of the 0.1 M KCl solution is given as 1.29 S m–1. We can use this information to find the resistance of the 0.02 M KCl solution.

Conductivity = 1 / Resistance
1.29 = 1 / 200
Resistance = 1 / 1.29
Resistance = 0.775 Ohm

So, the resistance of the 0.02 M KCl solution is 0.775 Ohm.

Answer:
The conductivity of the cell decreases with dilution.

Explanation:
When the concentration of the KCl solution decreases from 0.1 M to 0.02 M, the resistance of the cell increases from 200 Ohm to 420 Ohm. This indicates that the conductivity of the cell decreases with dilution.

Conductivity is a measure of how well a solution conducts electricity. As the concentration of the KCl solution decreases, there are fewer ions available to carry the electric current. This results in a decrease in conductivity.

Key Points:
- The resistance of the cell filled with a 0.1 M KCl solution is 200 Ohm.
- The resistance of the cell filled with a 0.02 M KCl solution is 420 Ohm.
- The conductivity of the 0.1 M KCl solution is 1.29 S m–1.
- The conductivity of the cell decreases with dilution.
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Read the passage given below and answer the following questions:The cell constant is usually determined by measuring the resistance of the cell containing a solution whose conductivity is already known. For this purpose, we generally use KCl solutions whose conductivity is known accurately at various concentrations and at different temperatures. Consider the resistance of a conductivity cell filled with 0.1 M KCl solution is 200 Ohm. If the resistance of the same cell when filled with 0.02 M KCl solution is 420 Ohm. (Conductivity of 0.1 M KCl solution is 1.29 S m–1.)The following questions are Multiple Choice Questions. Choose the most appropriate answer:Q. What will happen to the conductivity of the cell with the dilution?a)First decreases then increasesb)Increasesc)First increases then decreasesd)DecreasesCorrect answer is option 'D'. Can you explain this answer?
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Read the passage given below and answer the following questions:The cell constant is usually determined by measuring the resistance of the cell containing a solution whose conductivity is already known. For this purpose, we generally use KCl solutions whose conductivity is known accurately at various concentrations and at different temperatures. Consider the resistance of a conductivity cell filled with 0.1 M KCl solution is 200 Ohm. If the resistance of the same cell when filled with 0.02 M KCl solution is 420 Ohm. (Conductivity of 0.1 M KCl solution is 1.29 S m–1.)The following questions are Multiple Choice Questions. Choose the most appropriate answer:Q. What will happen to the conductivity of the cell with the dilution?a)First decreases then increasesb)Increasesc)First increases then decreasesd)DecreasesCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Read the passage given below and answer the following questions:The cell constant is usually determined by measuring the resistance of the cell containing a solution whose conductivity is already known. For this purpose, we generally use KCl solutions whose conductivity is known accurately at various concentrations and at different temperatures. Consider the resistance of a conductivity cell filled with 0.1 M KCl solution is 200 Ohm. If the resistance of the same cell when filled with 0.02 M KCl solution is 420 Ohm. (Conductivity of 0.1 M KCl solution is 1.29 S m–1.)The following questions are Multiple Choice Questions. Choose the most appropriate answer:Q. What will happen to the conductivity of the cell with the dilution?a)First decreases then increasesb)Increasesc)First increases then decreasesd)DecreasesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the passage given below and answer the following questions:The cell constant is usually determined by measuring the resistance of the cell containing a solution whose conductivity is already known. For this purpose, we generally use KCl solutions whose conductivity is known accurately at various concentrations and at different temperatures. Consider the resistance of a conductivity cell filled with 0.1 M KCl solution is 200 Ohm. If the resistance of the same cell when filled with 0.02 M KCl solution is 420 Ohm. (Conductivity of 0.1 M KCl solution is 1.29 S m–1.)The following questions are Multiple Choice Questions. Choose the most appropriate answer:Q. What will happen to the conductivity of the cell with the dilution?a)First decreases then increasesb)Increasesc)First increases then decreasesd)DecreasesCorrect answer is option 'D'. Can you explain this answer?.
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