(A) At what temperature will the formation of NO₂(g) from NO(g) and O₂(g) have Kp = 1.50 x 10²? For the reaction 2 NO(g) + O₂(g) ⇌ 2 NO₂(g) at 25 °C, Δ_rH° = -114.1 kJ mol^-1, and Δ_rS° = -146.5 J mol^-1K^-1.

(B) For the reaction 2 NO(g) + Cl₂(g) ⇌ 2 NOCl(g), what is the value of K at 

(a) 25 °C?

(b) 75 °C? Use data from Example 13-11.

Example 13-11

At what temperature will the equilibrium constant for the formation of NOCl(g) be K = 1.00 x 10³? Data for this reaction at 25 °C are

Transcribed Image Text:

2 NO(g) + Cl₂(g) = 2 NOCI(g) A,Gº = -40.9 kJ mol¹ A₁H = −77.1 kJ mol-¹ AS° = -121.3J mol ¹ K¹