Consider the equilibrium NO₂(g) ‡‹ NO(g) + 1/2O₂(g). One mole of NO₂(g) is placed in a vessel and allowed to come to equilibrium at a total pressure of 1 bar. An analysis of the contents of the vessel gives the following results:

a. Calculate K_P at 700. and 800. K.

b. Calculate ΔG^o_R and ΔH^o_R for this reaction at 298.15 K, using only the data in the problem. Assume that ΔHR???? is independent of temperature.

c. Calculate ΔG^o_R and ΔH^o_R using the data tables and compare your answer with that obtained in part (b).

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700. K 800. K PNo PNo, 0.872 2.50