The temperature of a typical laboratory freezer unit is -20 degrees C. If liquid water in a completely filled, closed container is placed in the freezer, estimate the maximum pressure developed in the container at equilibrium. The enthalpy of fusion of water may be taken as 333.4 kJ kg^-1, independent of temperature and pressure, and the densities of ice and liquid water at -20 degrees C are 0.9172 and 1.00 g cm^-3, respectively.