Skip to main content
Sign in Register
Question no. 26308

The mass of an ionic substance released at an electrode is directly proportional to the total electrical charge. This principle is associated with____________?

Select your answer for: The mass of an ionic substance released at an electrode is directly proportional to the total electrical charge. This principle is associated with____________?
Show answer

Answer: C. Faraday’s law of electrolysis

Explanation

Faraday's law of electrolysis establishes a direct mathematical proportionality between mass and total electrical charge. The amount of chemical change produced at an electrode depends entirely on the total current multiplied by time. This foundational principle governs all quantitative electroplating and battery electrochemical charging calculations. Michael Faraday formulated his laws of electrolysis in the nineteenth century to explain quantitative electrochemical reactions. The electrochemical equivalent of a substance determines how much mass is released per coulomb of electrical charge. This law links electrical current measurements directly to the physical mass of elements deposited at electrodes.

Faraday's laws are essential for industrial electroplating, metal refining, and calculating battery capacity limits. Engineers use these chemical principles to design efficient charging systems and predict active material consumption. Understanding electrolysis laws helps technicians control chemical deposition rates in manufacturing environments. Newton’s law describes classical mechanics, motion, and universal gravitation rather than electrochemical reactions. Faraday’s law of electromagnetic induction relates changing magnetic fields to induced voltages rather than electrolysis. Gauss’s law is a fundamental electrostatic principle dealing with electric fields and enclosed charge distributions.

Subject
Engineering
Topic
—
Difficulty
medium

Related questions

Q1. The specific gravity of electrolyte in an Edison cell measures_____________?

Select your answer for: The specific gravity of electrolyte in an Edison cell measures_____________?
Show answer

Answer: D. 1.21

The potassium hydroxide electrolyte used in Edison cells does not change density significantly with state of charge. Consequently, the specific gravity of a fully charged Edison cell remains relatively constant at approx...

Q2. The container body of an Edison cell is fabricated from___________?

Select your answer for: The container body of an Edison cell is fabricated from___________?
Show answer

Answer: C. nickel plated steel

The container body of an Edison cell is fabricated from rugged nickel-plated steel material. This durable metallic housing withstands severe mechanical shocks and vibrations in demanding industrial settings. Nickel plati...

Q3. Which indicators signify that a battery undergoing charge has reached full capacity___________?

Select your answer for: Which indicators signify that a battery undergoing charge has reached full capacity___________?
Show answer

Answer: D. all above

Reaching full capacity causes visible color changes in the active materials on the plates. Active gassing occurs as surplus electrical energy begins decomposing water into hydrogen and oxygen gas. The specific gravity of...

Q4. The consequence of sulphation is an increase in internal resistance__________?

Select your answer for: The consequence of sulphation is an increase in internal resistance__________?
Show answer

Answer: A. increases

Sulfation coats the conductive surfaces of the battery plates with an insulating layer of lead sulfate. This crystalline coating blocks the pores of the active material and restricts the flow of electrolyte ions. Consequ...

Q5. The proportion of ampere-hour efficiency relative to watt-hour efficiency in a lead-acid cell is____________?

Select your answer for: The proportion of ampere-hour efficiency relative to watt-hour efficiency in a lead-acid cell is____________?
Show answer

Answer: B. always greater than one

Because charging voltage exceeds discharging voltage, ampere-hour efficiency is always higher than watt-hour efficiency.

Q6. The presence of sulphated cells can be identified by____________?

Select your answer for: The presence of sulphated cells can be identified by____________?
Show answer

Answer: D. all above conditions

Sulphated cells exhibit a marked loss of electrical capacity during discharge operations. The specific gravity of the electrolyte decreases because sulfate ions remain trapped on the plates. Additionally, sulphated cells...