Name the phase change (I already named it, but need confirmation)?

(a) A diamond film forms on a surface from gaseous carbon atoms in a vacuum.


Deposition


(b) Mothballs in a bureau drawer disappear over time.


Sublimation


(c) Molten Iron from a blast furnace is cast into ingots (“pigs”).


Fusion








Am I correct?

Name the phase change (I already named it, but need confirmation)?
a.) I don't think the situtation is reasonable, but it is deposition, the transition from gas into solid.





b.) It is sublimation, the transition from solid to gas.





c.) It's only solidification or freezing... as it's a transtion from liquid to a solid.
Reply:the first guy to answer is correct. fusion is not a change of phase, it has more to do with the individual atoms.
Reply:a) deposition is not a phase change ........ its name is opp. of sublimation i.e condensation or soldification





b) sublimation





c)solidification