Problem: If the phase diagram for a pure substance has two and only two solid phases, how many triple points will it have?A. 0 B. 1 C. 2 D. 3 E. 4

FREE Expert Solution

For this problem, we're being asked to determine how many triple points are present whenever a phase diagram of a pure substance has two solid phases.

Recall that in most phase diagrams, we can distinguish 3 states separated by the lines. Here's an example

But there are special cases that a substance can exhibit two solid phases, example is sulfur. The phase diagram of sulfur can be seen below

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Problem Details

If the phase diagram for a pure substance has two and only two solid phases, how many triple points will it have?

A. 0 

B. 1 

C. 2 

D. 3 

E. 4


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