Melting occurs in going from region ________
A)I to II.
B)I to III.
C)II to III.
D)III to II.
E)III to I.

Name: Melting occurs in going from region ________ A)I to II. B)I to III. C)II to III. D)III to II. E)III to I.
Brand: Quizplus
Rating: 4.9 (33 reviews)

Question

Melting occurs in going from region ________ 
A)I to II. 
B)I to III. 
C)II to III. 
D)III to II. 
E)III to I.

Quizplus · Accepted Answer

According to the phase diagram, region I represents the solid state, region II represents the liquid state, and region III represents the gaseous state. Therefore, melting (solid to liquid) occurs in going from region I to II.

Melting Occurs in Going from Region ________