In the Gas Phase, Formic Acid Forms a Dimer, 2HCOOH(g) $\leftrightharpoons$

Multiple Choice

In the gas phase, formic acid forms a dimer, 2HCOOH(g) $\leftrightharpoons$ (HCOOH) ₂(g) . For this reaction, $\Delta$ H ^$\circ$ = -60.1 kJ/mol and $\Delta$ G ^$\circ$ = -13.9 kJ/mol at 25 ^$\circ$ C. Find the equilibrium constant (K_p) for this reaction at 75 ^$\circ$ C.

A) 8960
B) 273
C) 0.120
D) 8.33
E) 1.12 * 10^-4