Question

For which of the following reactions does the equilibrium constant

depend on the units of concentration

• A. NO(g) 0.5N₂(g) + 0.5O₂(g)
• B. Zn(s) + Cu²⁺(aq) Cu(s) + Zn²⁺(aq)
• C. C₂H₅OH(l) + CH₃COOH(l) CH₃COOC₂H₅(l) + H₂O(l)
• D. COCl₂(g) CO(g) + Cl₂(g)

Answer 1

The correct option is D

COCl₂(g) CO(g) + Cl₂(g)

For the reaction $COC{l}_2\left(g\right)\rightleftharpoons CO\left(g\right)+C{l}_2\left(g\right)$

$△n$ = $1$ for this change. So the equilibrium constant depends on the unit of concentration.