Thermodynamics
Table of Contents
If the initial pressure of the ice at 0°F
is 0.0505 psia, heat transfer to the ice first results in
anincrease in
temperature to 20°F. At this point, however, the ice
passes directly from the solidphase
to the vapor phase in the process known as sublimation.
Sublimation is a special termused
for cases in which the transition between the solid phase
and the vapor phase occursdirectly,
without passing through the liquid phase. Further heat
transfer would result insuperheating
the vapor.