ICSE Class 7 Answered
Define:
Fusion or melting
Freezing
Sublimation
Asked by Topperlearning User | 14 May, 2015, 01:02: PM
Expert Answer
- Fusion or melting: The process by which a solid changes into liquid state at a constant temperature by absorption of heat is called as fusion or melting. Example: Ice (solid) melts into water (liquid) at a temperature of 0°C and wax melts at 63°C.
- Freezing: The process by which a liquid changes into its solid state at a constant temperature by releasing heat is called as freezing. Example: Water (liquid) freezes into ice (solid) at a temperature of 0oC.
- Sublimation: The process in which a solid directly converts into its gaseous state at all temperatures is called as sublimation. Example: Camphor or naphthalene.
Answered by | 14 May, 2015, 03:02: PM
