delta G for a reaction can be calculated from

Question

1. delta Gf data
2. delta Hf and delta S data
3. equilibrium constants

a. only 1 or 2 or 3
b. 1 & 2 only
c. 1 & 3 only
d. 2 & 3 only
e. 1, 2 & 3

help

Answer 1

They can be calculated from 1.
dGrxn = dGproducts - dG reactants.
From 2.
dG = dH - TdS.
From 3.
dG = -RTlnK.