condensation vs liquefaction

condensation

noun
  • The conversion of a gas to a liquid. 

  • The condensate so formed. 

  • The state of being condensed. 

  • when a single idea (an image, memory, or thought) or dream object stands for several associations and ideas. 

  • The reaction of two substances with the simultaneous loss of water or other small molecule. 

  • The act or process of condensing or of being condensed 

liquefaction

noun
  • Process of being, or state of having been, made liquid (from either a solid or a gas) 

  • The liquid or semiliquid that results from this process. 

How often have the words condensation and liquefaction occurred in a corpus of books? (source: Google Ngram Viewer )