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During the discharge of lead storage bat...

During the discharge of lead storage battery, the density of `H_(2)SO_(4)` fall from 1.3g/mL of 1.1g/mL. Sulphuric acid of density 1.3g/mL is 40% by weight and that of density 1.1g/mL is 20% by weight. The battery contains 2.0 litres of acid. The volume remains unchanged during discharge. How many faraday of current is liberated ?

A

`6.12`

B

`4.92`

C

`5.34`

D

`3.06`

Text Solution

Verified by Experts

The correct Answer is:
A
Initial wt of `H_(2)SO_(4)` solution = (1.3) (2000) = 2600g
Initial wt of `H_(2)SO_(4)= 2600 xx 0.4= 1040g` Final wt of `H_(2)SO_(4)= 440g`
Wt of `H_(2)SO_(4)` consumed =600g Moles of `H_(2)SO_(4)` consumed = 6.1224
Moles of `H_(2)SO_(4)` consumed = eq of `H_(2)SO_(4)`= no of Faradays
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