CH-622
States of matter
Chemistry · Secondary 3 · Medium · States of matter
The heating curve of a pure substance shows a horizontal line at from 2 min to 4 min. What is happening to the particles during this time?
- Particles lose energy and move closer together.
- Particles gain kinetic energy and move faster in the same state.
- Particles absorb energy to overcome forces of attraction between them.
- Particles stop moving while heat is supplied.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.