Atmospheric reactions in hydrometeors (rain, fog, mist, and dew) produce aldehydes and ketones. Consider the conversion of pyruvic acid to acetaldehyde in fog droplets. The reaction is CH3-C(O)-COOH (g) → CH3CHO (g) + CO2 (g).
(a) Obtain the standard free energy change for the reaction at 298 K.
(b) What is the equilibrium constant for the reaction at 298 K?