Sublimation is an endothermic physical change (heat is needed).
It is called sublimation when you turn a solid into a gas. When you turn a gas into a solid it is called deposition.
Of course heat is added because you are turning solid which is like ice to gas which is water vapour !!
It depends on the phase change. When going from solid to liquid (melting), liquid to gas (boiling), or solid to gas (sublimation) heat is absorbed. When going from gas to liquid (condensation), liquid to solid (freezing), and gas to solid (deposition) heat is released.
Heat the solid until it becomes a liquid or a gas.
no
it becomes a heat out
I turns into a gas not a solid because the only way you can make it a solid is by freezing it and this is applying heat
heat an ice cube.
Add heat.
changes From a liquid to a gas it
Change from solid to liquid to gas require energy. Change from gas to liquid to solid emit energy.