How can coal be turned into a gas or liquid?

Answer 1

Coal, as a form of carbon has no liquid phase it will go strait to gas in a process called sublimination at about 5800k.

Answer 2

Coal can be converted into gas through a process called gasification, which involves heating coal at high temperatures in the presence of oxygen to produce a synthetic gas (syngas) containing carbon monoxide and hydrogen. This syngas can then be further processed to produce liquid fuels through a process called Fischer-Tropsch synthesis, which involves chemically converting the syngas into liquid hydrocarbons like diesel and gasoline.