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  • In the extraction of chlorine from brine _____________. A. \Delta {G}^{0} for the overall reaction is negative. B. \Delta {G}^{0} for the overall reaction is positive. C. {E}^{0} for the overall reaction has a negative value.

In the extraction of chlorine from brine _____________.

(i) \Delta \text {G}^{0} for the overall reaction is negative.

(ii) \Delta \text {G}^{0} for the overall reaction is positive.

(iii) \text {E}^{0} for the overall reaction has negative value.

(iv) \text {E}^{0} for the overall reaction has positive value.

Answers (1)

The answer is the option (ii,iii). 3Cl^{-}+2H_{2}O\rightarrow 2OH^{-}+H_{2}+Cl_{2}

                                                 \Delta G^{0} for the reaction is +422\; kJ

Using \Delta G^{0}=-nFE^{0}, we get E^{0}=-2.2\; V

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infoexpert23

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