When a solid substance disappears completely as a gas on heating; the substance is said to have undergone? by Sunday | Mar 19 | Chemistry JAMB | 0 comments A. Sublimation B. Crystallization C. Distillation D. Evaporation Correct Answer: Option A – Sublimation Users Also Read These:A solid of mass 0.5kg initially at 50oC melts at…When naphthalene on heating changes from the solid…If a piece of abandoned farmland went through a…When a solid substance disappears completely as a…On heating, the following trioxocarbonate (IV) salts…