Which phase change at standard temperature and pressure represents sublimation? [ASSET]
(a) CO2 (s)  CO2 (g)
(b) H2O (l)  H2O (g)
(c) CO2 (l)  CO2 (g)
(d) H2O (s)  H2O (l)

Respuesta :

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(a) CO₂(s) ⇌ CO₂(g) is an example of sublimation.

Sublimation is the conversion of a solid directly to a gas without going through the liquid phase.