FARADAY’S EXPERIMENT

by • 01/08/2013 • GeneralComments (0)581

FARADAY’S EXPERIMENT:

There are substances which can conduct electricity in solution or in molten state called electrolysis. These electrolytes consist of negative and positive ions. “Davy” was the scientist who observes the presence and nature of such ions.

But Faraday was the scientist who discussed the electrolyte is behavior in detail w.r.t their ions. He observed that, on passage of electricity the positive ion of electrolyte moves towards Cathode and deposit as metal whiles the negative ions moves towards

Anode and liberated as gas in most of the cases. He also calculate the charges carried by different ions and the amount of different elements liberated from the solution on the passage of given amount of change.

He proposed that 96490 coulombs of electric charge deposit the gram equivalent mass of substance at Cathode and Anode.

 

So, Gram Atomic Mass

——————– = req 96400 coulombs

Valency

 

6.02 x 10²³ atoms = req 96400 coulombs

1 atom = req 96400 / 6.02 x 10²³ coulombs

1 atom = req 1.6×10¹9 coulombs

 

This is the basic charge present on unit change called “Electron” by “STONEY”.

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