Delta G^o for a reaction can be calculated from?

1. delta G^o �f data

2. Delta H^o f and delta S data

3. equilibrium constants

I chose that delta G can be calculated from H and S values.

Would you agree?

Yes; however, I think all three statements are true.

Now that I looked over this question again I agree with that too. Thank you!

Yes, I agree with your statement that delta G^o for a reaction can be calculated from delta H^o and delta S values. The relationship between these thermodynamic quantities is described by the equation:

delta G^o = delta H^o - T(delta S)

where delta G^o is the standard Gibbs free energy change for the reaction, delta H^o is the standard enthalpy change, delta S is the standard entropy change, and T is the temperature in Kelvin.

To calculate delta G^o, you need to know the values of delta H^o and delta S^o for the reaction. Delta H^o can be determined through experiments or obtained from databases, such as standard enthalpy of formation values. Delta S^o can also be experimentally determined or calculated using theoretical methods. Once you have these values, you can substitute them into the above equation along with the temperature to solve for delta G^o.

It's important to note that delta G^o represents the standard free energy change at a specified temperature and pressure, assuming the reactants and products are in their standard states.