Consider the following reaction:
- NH4I(s) <----> NH3(g) + HI(g)
If a flask maintained at 680 K contains 0.161 moles of NH4I(s) in equilibrium with 6.02×10-2 M NH3(g) and 8.95×10-2 M HI(g), what is the value of the equilbrium constant at 680 K?
K = __________