CBSE Class 12-science Answered
3.66 sum plz
![question image](https://images.topperlearning.com/topper/new-ate/topr_21136611349476130rps20190819230804.jpeg)
Asked by lovemaan5500 | 19 Aug, 2019, 23:14: PM
Given:
Mass of nitrobenzene = 12.3 gm
Current efficieny = 50%
Potetial V = 3 V
Energy = ?
Reduction reaction is,
C6H5NO2 +6H+ + e− → C6H5NH2 + 2H2O
Moles of C6H5NO2 to be reduced
![equals fraction numerator 12.3 over denominator 123 end fraction
space equals 0.1 space mol](https://images.topperlearning.com/topper/tinymce/cache/666d6b332c534732464153cd85ab9d32.png)
According to the equation, 0.1 mole of C6H5NO2 will require 0.6 mole of electrons. But efficiecy of current is 50%.
Therefore, 0.1 mole of C6H5NO2 will require 1.2 mole of electrons.
Electricity carried by 1.2 mol of electrons = 1.2 × 96500
= 115800 C
Answered by Varsha | 20 Aug, 2019, 11:40: AM
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