Water and ice are in the equilibrium at 1 atm pressure and 273K. Determine the pressure required to melt ice into the liquid water at 253K. The densities of liquid water and ice are 1.000 and 0.915 gmcm-3, respectively, and the heat of fusion Δfus Ho = 6,007 J mol-1 , all of which can be taken as independent of temperature among the 273 and 253 K. M(H20) = 18 g mol-1