自由焓 Traditional form: 自由焓 Pinyin (reading): zìyóuhán Definitions: free enthalpy (thermodynamics) Gibbs free energy Characters: 自 - self; private, personal; from 由 - cause, reason; from 焓 - onomatopoetic, a fire sizzling Traditional characters: 自 - self; private, personal; from 由 - cause, reason; from 焓 - onomatopoetic, a fire sizzling