Equilibrium constant 'K' is measured accurately in the laboratory at given temperature. Is it possible to calculate `DeltaG^(theta)` at any other temperature ? How?

Explanation

Gibbs energy for a reaction `DeltaG^(theta)` is related to equilibrium constant of the reaction as follows.
`O=Delta_(r)G^(theta)+RT ln K`
or `Delta_(r)G^(theta)=-RTlnK`
or `Delta_(r)G^(theta)=-2.303RTlogK.`
If `k_(x)` is measured, the value of `Delta_(r)G^(theta)` at any temperature can be calculated. By substituting the `K_(x)` value at a different temperature `T_(x)` we can calculate `DeltaG^(theta)` at the temperature
`Delta_(r)G^(theta)=-2.303RT_(x)logK_(x)`