For the Equilibrium H₂(g)+ S(s) $\leftrightarrows$ H₂S(g),K_c = 6 $\times$ 10⁵ at 298 K

question 144

Multiple Choice

For the equilibrium H₂(g) + S(s) $\leftrightarrows$ H₂S(g) ,K_c = 6.1 $\times$ 10⁵ at 298 K.If the concentrations of H₂ and H₂S are equal,which of the following statements is true?

• A)The concentration of S equals K_c.
• B)The equilibrium constant equals 1.
• C)The reaction quotient equals 1.
• D)The system is at equilibrium.
• E)The concentrations of H₂ and H₂S can never be equal.

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