![]() ![]() ![]() The triple point of water is the end of the first curve, and at this point, the three phases of water- solid, liquid, and steam coexist. The water phase you will observe at this line is the saturated steam, and along the saturated line, no matter the pressure, temperature condition, and magnitude, water and steam would be present in equilibrium. The third curve then becomes the boundary between the gas and the liquid phase, and this curve is also regarded as the saturated line. As you can observe, the first curve becomes the boundary between the gas and the solid phase, while the second phase becomes the boundary between the liquid and the solid phase. The colors blue, green, and yellow represent the different water states. In this diagram, the X-axis and Y-axis represent temperature and pressure, respectively. What is the phase diagram of water? It is a pressure-temperature diagram that showcases water in its various states like ice, liquid, and steam under different conditions. In physical chemistry, mineralogy, material science, and engineering, the phase diagram is a chart that showcases the conditions at which thermodynamically distant phases occur as well as coexist at equilibrium. Before understanding the phase diagram of water, one needs to understand the basics: what is a phase diagram? A phase diagram is a graphical representation of the phase change of different substances under different pressure and temperature conditions. ![]()
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