Nicotinamide adenine dinucleotide (NAD+ for the oxidized for...

Nicotinamide adenine dinucleotide (NAD+ for the oxidized form, NADH for the reduced form) is an important cofactor that participates in many redox reactions within cells. An enzyme called alcohol dehydrogenase uses NAD+/NADH to catalyze the conversion of ethanol to acetaldehyde as shown below: NAD+ + C2H5OH ´´seta´´ NADH + CH3CHO + H+ E(standard) = -0.12 pH=7 . Calculate the equilibrium constant , at a PH of 7 for this reaction at a PH of 7 for thid reaction at 293 K . Answer in 3 significant figures