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Question

Sodium metal is produced commercially by the electrolysis of molten sodium chloride and chlorine is produced as a by product. How many liters of chlorine at 1.8 atm and 27oC will be produced if a current of 1.0×103A is passed through NaCl for 9.65 h?

A
2463
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B
460
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C
1800
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D
1231.6
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Solution

The correct option is C 2463
Given: I=1.0×103A
t=9.65h=9.65×60×60s
ECl=35.5

W=ItE96500
=1.0×103×9.65×60×60×35.596500
=12.78×103g
For Cl271g occupies 22.4L
12.78×103g occupies 12.78×103×22.471=4032L
P1V1T1=P2V2T2
1×4032273=1.8×V2300
V2=2461L
Cell reaction is 2NaCl2Na(s)+Cl2(g)
Volume of chlorine produced= 2461L

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