Calculate Kp for the reaction NH4HS(s) → NH3(g) + H2S(g). Kc = 8.5 x 10⁻³ at 25°C. If a closed container at 25°C contained 12.7 g NH4HS and some NH3 gas with a partial pressure of 0.510 atm and H2S gas with a partial pressure of 1.14 atm, will the reaction produce more solid or more gases in order to reach equilibrium?

a) More solid
b) More gases
c) No change
d) Cannot be determined