A phase diagram shows phase changes of a substance by illustrating which of the following? A. pressure vs. time B. pressure vs. density C. temperature vs. time D. pressure vs. temperature

D. Pressure vs. temperature

Explanation:

In physical chemistry, this diagram or graph is utilized to predict the conditions like volume, pressure and temperature at which thermodynamic- ally different phases like solid, gases and liquid occur and both states exist at equilibrium.

The simple phase diagrams are the pressure–temperature diagrams of a simple substance like water. In that diagram, x and y axes were correspond to the temperature and pressure. It shows, in the space of pressure and temperature, the equilibrium lines occur between all the 3 phases of water.

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the child is heterozygous