Equilibrium Question 729

Question: What is the equilibrium constant for the reaction’ $ {P_{4(s)}}+5{O_{2(g)}} \leftrightharpoons P_4{O_{10(s)}} $

Options:

A) $ K_{C}=\frac{1}{{{[ O_2 ]}^{5}}} $

B) $ K_{C}=\frac{[ P_4O_{10} ]}{5[ P_4 ][ O_2 ]} $

C) $ K_{C}={{[ O_2 ]}^{5}} $

D) $ K_{C}=\frac{[ P_4O_{10} ]}{5[ P_4 ]{{[ O_2 ]}^{5}}} $

Show Answer

Answer:

Correct Answer: A

Solution:

Concentration of solid species is supposed to be unity.
$ \therefore K_{C}=\frac{1}{{{[O_2]}^{5}}} $



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