Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Plasma
B
Vapor
C
Solid
D
Liquid
Understanding the Answer
Let's break down why this is correct
Answer
Solid to liquid is the melting transition, where a solid absorbs heat and becomes a liquid. The analogous change for a gas is condensation, in which a gas releases heat and turns into a liquid. Thus the relationship is Solid : Liquid :: Gas : Liquid. For example, when steam cools, it condenses into water, just as ice melts into water.
Detailed Explanation
The pair shows a change from a solid state to a liquid state. Other options are incorrect because Many think the hottest gas becomes plasma, but plasma is a fully ionized gas; Some mix up the direction of the change.
Key Concepts
Phase transitions
States of matter
Equilibrium
Topic
Phase Diagrams
Difficulty
hard level question
Cognitive Level
understand
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