If the E c e l l o for a given reaction has a negative value, which of the following gives the correct…

If the Ecello for a given reaction has a negative value, which of the following gives the correct relationship for the values of Go and Keq?
  1. Go>0; Keq<1
  2. Go>0;Keq>1 
  3. Go<0;Keq>1
  4. Go<0;Keq<1

Solution

ΔG=-2.303RT log k
ΔG=nFEo

Ecello=-ve Ecello<0, then, 

ΔG=nF-Eo=+ve

From the equation, ΔG=-2.303RT log k


G=+ve & Keq=-ve
i.e., G>0 & Keq<1.

Asked in: NEET 2016 (Phase 2)

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