a) If the difference in the Gibbs free energy G is 4.0kJmol1 at 298K. What is the Keq for this reaction? Do your calculation based on a value of the gas constant of R=8.314J1mol1 at 25C. Make sure you use the appropriate units. Keq= b) What is the change in entropy of the reaction if H=3.2kJmot1 ? Make sure to include the ALGEBRAIC SIGN in your answer. Make sure you use the appropriate units. S=kJK1mol1