linearly

rapidly first and then slowly

slowly first and then rapidly

inversely

pulverising coal in inert atmosphere

heating wood in a limited supply of air at temperatures below 300°C

strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel

binding the pulverised coal into brickettes

pulverising coal in inert atmosphere

heating wood in a limited supply of air at temperatures below 300GC

strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel

binding the pulverised coal into bricketts

enthalpy

superheating

supersaturation

latent heat

constant volume

constant temperature

constant pressure

constant entropy