Question

Phosphorus pentachloride decomposes to phosphorus trichloride and chlorine gas at elevated temperatures by the following reaction:
PCl5(g) PCl3(g) + Cl2(g). If Kc = 1.8 at 250C, what is the value of Kp at the same temperature?
A) 4.2 10-2
B) 8.8 10-2
C) 65
D) 77

Answer

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