UPPCS · வினா 124
A sample of substances like camphor, naphthalene or dry ice disappears after some time when exposed to air. This phenomenon is called
விடையைக் காட்டு & விளக்கம்
விடை: (A) Sublimation
விளக்கம்
Sublimation is the direct change from solid to vapour without melting, as seen in camphor, naphthalene and dry ice (solid CO2).