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On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7?
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On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The...
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On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The...
Given information:
- Current passed (I) = 3 A
- Time (t) = 50 min = 50 × 60 s = 3000 s
- Mass of metal deposited (m) = 1.8 g
Concept:
- Faraday's law of electrolysis states that the amount of substance (in grams) deposited or liberated at any electrode is directly proportional to the quantity of electricity (in Coulombs) passed through the electrolyte.
- The equivalent mass of a substance is the mass of the substance that is deposited or liberated by the passage of 1 Faraday (F) or 96500 Coulombs of electricity.
Solution:
To find the equivalent mass of the metal, we need to calculate the amount of electricity passed in Coulombs.
- Charge (Q) = I × t
= 3 A × 3000 s
= 9000 C
Now, we can calculate the equivalent mass using Faraday's law of electrolysis.
- Equivalent mass (E) = mass of substance deposited (m) / amount of electricity passed (Q)
Substituting the given values,
- E = 1.8 g / 9000 C
= 0.0002 g/C
To convert grams per Coulomb to grams per Faraday, we need to multiply by the Faraday constant (F = 96500 C).
- E = 0.0002 g/C × 96500 C
= 19.3 g/F
Therefore, the equivalent mass of the metal is 19.3 g/F.
Answer: The correct option is c) 19.3
- Current passed (I) = 3 A
- Time (t) = 50 min = 50 × 60 s = 3000 s
- Mass of metal deposited (m) = 1.8 g
Concept:
- Faraday's law of electrolysis states that the amount of substance (in grams) deposited or liberated at any electrode is directly proportional to the quantity of electricity (in Coulombs) passed through the electrolyte.
- The equivalent mass of a substance is the mass of the substance that is deposited or liberated by the passage of 1 Faraday (F) or 96500 Coulombs of electricity.
Solution:
To find the equivalent mass of the metal, we need to calculate the amount of electricity passed in Coulombs.
- Charge (Q) = I × t
= 3 A × 3000 s
= 9000 C
Now, we can calculate the equivalent mass using Faraday's law of electrolysis.
- Equivalent mass (E) = mass of substance deposited (m) / amount of electricity passed (Q)
Substituting the given values,
- E = 1.8 g / 9000 C
= 0.0002 g/C
To convert grams per Coulomb to grams per Faraday, we need to multiply by the Faraday constant (F = 96500 C).
- E = 0.0002 g/C × 96500 C
= 19.3 g/F
Therefore, the equivalent mass of the metal is 19.3 g/F.
Answer: The correct option is c) 19.3
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On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7?
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On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7?.
On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for On passing 3 A of electricity for 50 min, 1.8g metal is deposited. The equivalent mass of metal is a) 20.5 b) 25.8 c) 19.3 d) 30.7?.
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