Multiple Choice
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the equation: PCl5(g) ⇌ PCl3(g) + Cl2(g)
At 250° 0.188 M PCl5 is added to the flask.If Kc = 1.80,what are the equilibrium concentrations of each gas?
A) [PCl5] = 0.0164 M, [PCl3] = 0.172 M, and [Cl2] = 0.172 M
B) [PCl5] = 0.0940 M, [PCl3] = 0.411 M, and [Cl2] = 0.411 M
C) [PCl5] = 1.80 M, [PCl3] = 1.80 M, and [Cl2] = 1.80 M
D) [PCl5] = 4.13 M, [PCl3] = 3.94 M, and [Cl2] = 3.94 M
Correct Answer:

Verified
Correct Answer:
Verified
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