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Question
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
At 250C, 0.250 M PCl5 is added to a flask. If Kc = 1.80, what are the equilibrium concentrations of each gas?
A) [PCl5] = 0.0280 M, [PCl3] = 0.222 M, [Cl2] = 0.222 M
B) [PCl5] = 1.25 M, [PCl3] = 0.474 M, [Cl2] = 0.474 M
C) [PCl5] = 1.80 M, [PCl3] = 1.80 M, [Cl2] = 1.80 M
D) [PCl5] = 2.27 M, [PCl3] = 2.02 M, [Cl2] = 2.02 M
Answer
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