Physical Chemistry Chapter 7 H,O phase diagram: P-T Region(s, l,g) 218 atm 角C f-2, one phase oY solid liquid Line(oa, ad AC) 1 atm two pi chases R in equilibrium 0.006l1 gas Point(a) f=0, three phases 0.00240.01 99974 374.2 T73 Tb in equilibrium t/℃16 H2O phase diagram: P — T Region (s, l, g): f=2, one phase t/℃ A D C 0.00611 0.01 solid gas liquid O P / 10 5 Pa 374.2 218 atm 99.974 1 atm 0.0024 I R S Y Tf T3 Tb Line (OA, AD, AC): f=1, two phases in equilibrium Point (A): f=0, three phases T in equilibrium c Physical Chemistry Chapter 7