1. The thermodynamics of the reaction catalyzed by pyruvate kinase (PK),

i.e. phosphoenolpyruvate + ADP pyruvate + ATP

a) Using the vant Hoff plot shown, determine rH ^o . (Note: ln K = 2.303 log₁₀ K)

b) Determine rG ^o at 298 K.

(Hint: use the LINE rather than the individual data points to do this problem, and interpolate carefully, by measuring with a ruler)