Question

In: Chemistry

For the following half reaction: N2(g) + 5H+(aq)+4e- ----> N2H5+ Calculate the amount of time required...

For the following half reaction: N₂(g) + 5H⁺(aq)+4e^- ----> N₂H₅⁺

Calculate the amount of time required to produce 7.86 (g) of N₂ while using a 15.0 A current.

Expert Solution

weight (W) = 7.86

current (i) = 15 A

faraday (F) = 96500 C

N2 -------------------> N2H5+

0 -2 --------------------> oxidation state of N atom

for 2 N atoms change is oxidation state = -4 (4 units)

equivalence weight of N2 (E) = molecular weight / valency

= 28 /4

= 7 GEW

from faraday law

W = E x i x t / 96500

7.86 = 7 x 15 x t / 96,500

t = 7223.7 sec

t = 120.39 min

time required = t = 7223.7 sec = 120.39 min

queen_honey_blossom answered 2 months ago

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