In the extraction of chlorine from brine _____________.
A. for the overall reaction is negative.
B. for the overall reaction is positive.
C. for overall reaction has negative value.
D. for overall reaction has positive value.
The following reaction takes place during extraction of chlorine from brine
2Cl– (aq) + 2H2O(l) → 2OH– (aq) + H2(g) + Cl2(g)
The for this reaction is +422kJmol-1. Using the formula
, = -nF
Where, is the Gibb’s free energy
n is the number of moles
F is Faraday’s constant
is the electrode potential
Putting the values in the above formula, we get
Therefore, for the overall reaction is positive and for overall reaction has negative value.
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