The following acid-base reaction occurs spontaneously in the gas phase: NH₃(g) + HCl(g) ⇌ NH₄Cl(s)

During an experiment, 10.00 g of solid NH₄Cl was added to a 500.0 mL flask at 25.0°C. The equilibrium constant for this reaction at this temperature is 8.9 × 10¹⁵, determine the partial pressures (in atm) of NH₃ and HCl after the reaction reaches equilibrium.