In his article about why wood won’t melt:
Cecil wrote that if you heat wood in vacuum you would get liquefied carbon.
I say it depends. Tar is made by heating conifer wood in a pile that wont let oxygen in. So I’d say that tar is liquefied wood.
pine tar is a liquid at a certain temperature and comes from wood.
melting is a physical change of state. water, metal both exist is a frozen and liquid state. only heat transfer is needed. the substance is unchanged in the transformation.
pine tar is a chemical change. you can’t make it go back into a tree form by changing its heat content.
it is correct to say pine tar is a liquid derived from wood. it is not correct to say it is liquefied wood in the melting sense.
Cecil is the brain.
Because wood is a complex structure, outgassing is going to change that structure. So you will never be able to refreeze the “liquified wood” of liquid carbon.