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A phase diagram is a graphical representation of the various phases of a substance or mixture of substances that coexist in thermodynamic equilibrium, and undergo phase changes under different working conditions, such as temperature, pressure, or volume. The water system is divided into three phases: ICE (S), WATER (L), and WATER VAPOUR (G)
Phase Diagram for Water. Water is a unique substance in many ways. One of these special properties is the fact that solid water (ice) is less dense than liquid water just above the freezing point. The phase diagram for water is shown in the figure below.
13 Ιουλ 2019 · This document discusses phase diagrams and the phase rule through the example of a one-component water system. It defines key terms like phase, component, degree of freedom, and phase rule.
We can use the phase diagram to identify the state where water exists under specific temperature and pressure conditions. For example, water is ice at 50 kPa and – 10 o C. Water is unique compared to other substances.
This course provides an introduction to selecting water sources and determining water requirements for developing suitable sources of supply from ground or surface sources. 1.2 APPLICABILITY. These guidelines are applicable to the selection of water sources and planning and designing supply systems. 1.3 REFERENCES.
Phase diagrams show the preferred physical states of matter at different thermodynamic variables, such as temperatures and pressure. Within each phase, the material is uniform with respect to its chemical composition and physical state.
A phase diagram in physical chemistry, engineering, mineralogy, and materials science is a type of chart used to show conditions (pressure, temperature, etc.) at which thermodynamically distinct phases (such as solid, liquid or gaseous states) occur and coexist at equilibrium.
