thermodynamics Why is there any vapor above the water surface at atmospheric pressure and room temperature? Physics Stack Exchange Preferred Mode of Atmospheric Water Vapor Condensation on Nanoengineered Surfaces: Dropwise or Filmwise? Langmuir For water at 100^(@)C and 1 bar, Delta_(vap) H Delta_(vap)U = _______ xx 10^(2) J mol^( 1). (R Water (data page) Wikipedia Given the phase diagram of water below, what are the values of its critical temperature and critical pressure? Also, at 0 degrees C, what kind of phase changes would occur as the