How many phase changes are represented in the following heating curve of a pure substance?
A)0
B)1
C)2
D)3

Name: How many phase changes are represented in the following heating curve of a pure substance? A)0 B)1 C)2 D)3
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Question

How many phase changes are represented in the following heating curve of a pure substance? 
A)0 
B)1 
C)2 
D)3

Quizplus · Accepted Answer

There are two plateaus on the heating curve, which represent phase changes. The first plateau is from solid to liquid, and the second plateau is from liquid to gas. Therefore, there are a total of two phase changes represented in the heating curve.

How Many Phase Changes Are Represented in the Following Heating