At 600 C, K p = 0.57 for the endothermic reaction:
CO₂ (g) + H₂ (g) CO (g) + H₂ O (g) The value of K p at 300 C is:

Question

At 600 C, K p = 0.57 for the endothermic reaction:
CO₂ (g) + H₂ (g)  CO (g) + H₂ O (g) The value of K p at 300 C is:

Quizplus · Accepted Answer

For an endothermic reaction, the value of Kp decreases with decreasing temperature. Therefore, since the reaction is endothermic, the value of Kp at 300 C is expected to be less than 0.57, which is the value of Kp at 600 C. Therefore, the best answer is C, less than 0.57.

At 600 C, K P = 0