[rayyyu]

Calculate ΔG (in kJ/mol) for this reaction if the temperature is instantaneously raised to
400.0 C at which Keq = 1.64 × 10–4. Assume that the reaction quotient (Q) is equal to the
value for the equilibrium constant you calculated in part a. Interpret your ΔG value.
Standard Delta G value is -32.8 kJ/mol
Answer for part A was 5.58 * 10^5
I tried using the formula ΔG = Standard ΔG + RTlnQ but I am getting answer of about 41 using the given values. I assume something has to be done with the 1.64 * 10^-4 value but I cannot seem to figure it out.

[Corribus]

Showing your work would help to diagnose your error. Only seeing half the problem also makes it difficult.