40. Match standard free energy of the reaction with the corresponding equilibrium constant.

 A. $∆{\mathrm{G}}^{⊝}>0$ 1. K>1 B. $∆{\mathrm{G}}^{⊝}<0$ 2. K=1 C. $∆{\mathrm{G}}^{⊝}=0$ 3. K=0 4. K<1
A.$\to$(4) B.$\to$(1) C.$\to$(2)
As we know that,
A. If $∆{\mathrm{G}}^{⊝}>0$, i.e., $∆\mathrm{G}°$ is positive, then ln K is negative i.e., K<1
B. If $∆{\mathrm{G}}^{⊝}<0$, i.e., $∆\mathrm{G}°$ is negative then ln K is positive i.e., K>1
C. If $∆{\mathrm{G}}^{⊝}=0$, ln K=0, i.e., K=1.