For the Reaction PCl₅(g) → PCl₃(g) + Cl₂(g) at 298

Multiple Choice

For the reaction PCl₅(g) → PCl₃(g) + Cl₂(g) at 298 K, Keq = 1.87 × 10^-7, ΔS° = 181.92 J/mol K, what is Keq at 200 K if ΔH° = 92.6 kJ/mol?

A) 2.08 × 10^-15
B) 16.8
C) 1.87 × 10^-7
D) 5.35 × 10⁶
E) 5.95 × 10^-2