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Phosphorus Pentachloride Decomposes to Phosphorus Trichloride and Chlorine Gas at Elevated

Question 43

Multiple Choice

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 250°C.
What is the value of Kp at the same temperature?


A) 4.2 × 10-2
B) 8.8 × 10-2
C) 65
D) 77

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