what is the process of changing a solid into gas called(directly)?
The process of changing a solid directly into gaseous state is called sublimation.
___ is the process by which a gas changes into solid.
___ is the process in which a solid directly changes to gas, without turning into liquid.
What is the name of the process in which:
(a) a solid turns directly into a gas (b) a gas turns directly into a solid?