Question

What is the process by which a solid, such as iodine, changes directly to a gas?

Answer 1

`"Sublimation"` refers to the transition: `"solid "rarr" gas"`

Explanation:

Given a good enuff vacuum, and an efficient means to heat the solid (for example, a tube furnace), sublimation can often be performed on neutral molecules and complexes. Recoveries are generally low, but that which is collected, `"the sublimate"` tends to be very pure.