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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. The cell constant of a conductivity cell ________.
- a)Changes with change of electrolyte.
- b)Changes with change of concentration of electrolyte
- c)Changes with temperature of electrolyte.
- d)Remains constant for a cell.
Correct answer is option 'D'. Can you explain this answer?
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The cell constant of a conductivity cell remains constant for a cell.
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Explanation:
The cell constant of a conductivity cell refers to the proportionality constant between the measured resistance and the conductivity of the solution. It is a unique characteristic of the cell and is determined by the dimensions of the electrodes and the distance between them. The cell constant is defined as the ratio of the distance between the electrodes to the cross-sectional area of the solution between them.
The passage states that the resistance of the conductivity cell filled with a 0.1 M KCl solution is 200 Ohm, and the resistance of the same cell filled with a 0.02 M KCl solution is 420 Ohm. We are also given the conductivity of the 0.1 M KCl solution, which is 1.29 S m–1.
Calculation:
To determine the cell constant, we can use the formula:
Cell constant (K) = Resistance (R) / Conductivity (σ)
For the 0.1 M KCl solution:
K = 200 Ohm / 1.29 S m–1 ≈ 155.03 m–1
For the 0.02 M KCl solution:
K = 420 Ohm / σ
We can rearrange the formula to solve for the conductivity:
σ = Resistance (R) / Cell constant (K)
For the 0.02 M KCl solution:
σ = 420 Ohm / 155.03 m–1 ≈ 2.71 S m–1
Conclusion:
From the calculations, we can see that the cell constant remains constant for the conductivity cell. It does not change with changes in the electrolyte or its concentration. The cell constant only depends on the dimensions of the cell and is determined during the calibration process. Therefore, the correct answer is option 'D' - the cell constant remains constant for a cell.
The cell constant of a conductivity cell refers to the proportionality constant between the measured resistance and the conductivity of the solution. It is a unique characteristic of the cell and is determined by the dimensions of the electrodes and the distance between them. The cell constant is defined as the ratio of the distance between the electrodes to the cross-sectional area of the solution between them.
The passage states that the resistance of the conductivity cell filled with a 0.1 M KCl solution is 200 Ohm, and the resistance of the same cell filled with a 0.02 M KCl solution is 420 Ohm. We are also given the conductivity of the 0.1 M KCl solution, which is 1.29 S m–1.
Calculation:
To determine the cell constant, we can use the formula:
Cell constant (K) = Resistance (R) / Conductivity (σ)
For the 0.1 M KCl solution:
K = 200 Ohm / 1.29 S m–1 ≈ 155.03 m–1
For the 0.02 M KCl solution:
K = 420 Ohm / σ
We can rearrange the formula to solve for the conductivity:
σ = Resistance (R) / Cell constant (K)
For the 0.02 M KCl solution:
σ = 420 Ohm / 155.03 m–1 ≈ 2.71 S m–1
Conclusion:
From the calculations, we can see that the cell constant remains constant for the conductivity cell. It does not change with changes in the electrolyte or its concentration. The cell constant only depends on the dimensions of the cell and is determined during the calibration process. Therefore, the correct answer is option 'D' - the cell constant remains constant for a cell.
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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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer?.
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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer?.
Solutions 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer?, a detailed solution 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice 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. The cell constant of a conductivity cell ________.a)Changes with change of electrolyte.b)Changes with change of concentration of electrolytec)Changes with temperature of electrolyte.d)Remains constant for a cell.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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