3. At equilibrium at 100°C, a 1.0L flask contains:
0.075 mol of PCI, ,0.050 mol of H₂O, 0.750 mol of HCI, 0.500 mol of POCI,
Calculate the Keq for the reaction:
PCI, (s) + H₂O (g) 2HCI (g) + POCI, (g)
