engineering chemistry MCQ #2185

What is the expression for Kc for the reaction Fe3+ + SCN- ⇌ FeSCN2+?

engineering chemistry MCQ #2185

  1. Question 1

    Q1. What is the expression for Kc for the reaction Fe3+ + SCN- ⇌ FeSCN2+?

    • A) [FeSCN2+] / ([Fe3+][SCN-])
    • B) [Fe3+][SCN-] / [FeSCN2+]
    • C) [FeSCN2+] / ([Fe3+] + [SCN-])
    • D) [Fe3+] + [SCN-] / [FeSCN2+]

    Answer: [FeSCN2+] / ([Fe3+][SCN-])

    Explanation: Kc = [products] / [reactants] raised to their stoichiometric coefficients, so Kc = [FeSCN2+] / ([Fe3+][SCN-]).