3.66 sum plz

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 

 

 

 

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