Is freezing an endothermic change or an exothermic change?
Fusion, vaporization, and sublimation are endothermic processes, whereas freezing, condensation, and deposition are exothermic processes. Changes of state are examples of phase changes, or phase transitions. All phase changes are accompanied by changes in the energy of a system.
Is freezing an exothermic reaction or an endothermic reaction?
Is freezing endothermic or exothermic? Freezing, the phase transition from liquid to solid form, is an exothermic process because energy, in the form of heat, is emitted in the process. Because freezing/melting is a first-order phase transition, t…
Why are condensation and freezing exothermic?
There are six changes of phase that substances go through:Freezing: liquid to solid.Melting: solid to liquid.Condensation: gas to liquid.Vaporization: liquid to gas.Sublimation: solid to gas.Deposition: gas to solid.
Is freezing a thermal energy added?
The energy released upon freezing is a latent heat, and is known as the enthalpy of fusion and is exactly the same as the energy required to melt the same amount of the solid. Low-temperature helium is the only known exception to the general rule.