This is called the triple point on a phase diagram.

As such, they are best illustrated with a phase diagram.

Replies: What you want to see is called a phase diagram.

In other words what does the phase diagram looks like.

There are two points on the phase diagram of particular interest.

It is similar to the phase diagram of water although there are two important differences.

A typical phase diagram for such a system is shown in figure 6.33.

You would have to know the phase diagram of the system.

Above that table is a graph called a phase diagram.

The phase diagram shown here is for a single component system.