pure liquid

When the temperature and pressure of a pure substance are fixed, the equilibrium state of the substance is also fixed. This is illustrated in Figure 1, which shows the phase diagram for pure argon. In the diagram…

…divided into two general categories: pure liquids and liquid mixtures. On Earth, water is the most abundant liquid, although much of the water with which organisms come into contact is not in pure form but is a mixture in which various substances are dissolved. Such mixtures include those fluids essential…