In producing chlorine through electrolysis 100 W power at 125 V is being consumed. How much chlorine per min is liberated? ECE of chlorine is 0.367 x 10-6 kg/C:
- 17.6 mg
- 34.3 mg
- 24.3 mg
- 39.6 mg
The Correct Option is A
Solution and Explanation
Given:
Power = 100 KW
Voltage = 125 V
ECE of chlorine Z = 0.367 x 10-6 kg/C
Power P = Vi
100 = 125 x i
i = \(\frac {100}{125}\)
i = 0.8 A
We know that first law of electrolysis
m = Zit
m = 0.367× 10−6 × 0.8 × 60
m = 17.616 × 10−6 kg
m = 17.616 × 10−6 x 106 mg
m = 17.6 mg
So, the correct option is (A): 17.6 mg
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Concepts Used:
Electrolysis
Electrolysis:
Electrolysis is the process by which an element is decomposed and undergoes some chemical change under the influence of any electric current. The first-ever electrolysis was executed out by Sir Humphrey Davey in the year 1808. Electrolysis can occur in both Galvanic cells and Electrolytic cells.
Applications of Electrolysis:
- Electrolytic cells are used for the production of Hydrogen and Oxygen gas from water.
- They are used for the large-scale production of pure metals like sodium, copper, magnesium, etc.
- They are used to extract Aluminium from Bauxite.
- Electrolytic cells are used for electroplating, a process by which a thin protective layer of one metal is formed over another metal, mostly for protection.
- Electrolysis is used for the electrorefining of non-ferrous metals.
Read More: Products of Electrolysis