Which section of the graph shows where the average kinetic energy of the molecules is greatest? Identify and justify which section of the graph represents boiling.
Understand the Problem
The question is asking to identify parts of a temperature vs. time graph related to the heating of water and to explain which section corresponds to boiling and the kinetic energy of the molecules. It requires understanding of thermodynamics in the context of water's heating process.
Answer
Section Z has greatest kinetic energy; section Y represents boiling.
The greatest average kinetic energy is in section Z where temperature is highest. Section Y represents boiling as temperature is constant during phase change.
Answer for screen readers
The greatest average kinetic energy is in section Z where temperature is highest. Section Y represents boiling as temperature is constant during phase change.
More Information
Section Z corresponds to the highest temperature, thus the greatest kinetic energy. During boiling (Y), the temperature stays the same despite energy input, due to energy being used for phase change.
Tips
A common mistake is confusing phase change sections with those of increasing kinetic energy.
Sources
- States of Matter (answers) - bpi.edu
- The diagram below shows the change of phases of a substance on... - byjus.com
AI-generated content may contain errors. Please verify critical information
