I don't understand what makes a liquid entirely different from a gas, why wouldn't a liquid slowly become more gaseous, but instead transition completely from one form to the other?

  • 3
    $\begingroup$ Well, it would, if you'd walk around the critical point. $\endgroup$ Aug 23, 2017 at 16:13
  • $\begingroup$ chemistry.stackexchange.com/questions/37088/… $\endgroup$
    – Mithoron
    Aug 23, 2017 at 16:26
  • $\begingroup$ The title is not very defining. Not all spectra are continuous; plenty are flat-line spectra. $\endgroup$
    – andselisk
    Aug 23, 2017 at 17:39


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