JAMB Physics 2010 Objective — Question 44
Question 44 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2010 Objective paper, with the correct answer and a full explanation.
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In Faraday's law of electrolysis, a graph of mass deposited against the quantity of electricity is plotted. The slope of the graph gives
- A. the electrochemical equivalentCorrect
- B. the charge released
- C. the current flowing
- D. the energy released
Explanation
By Faraday's first law of electrolysis, m proportional Q (m=ZQ). The slope Z (which is equal to m/Q) is known as the electrochemical equivalent of the element involved. The S.I unit of Z is Kgc-1.
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