The discussion centers on the heat energy removed from a liquid when vapor is absent, specifically addressing the concepts of latent heat of sublimation and latent heat of fusion. Participants clarify that sublimation involves ice transitioning directly to vapor, while latent heat of fusion pertains to the melting of ice into water. The conversation also highlights the process of subcooling, where a liquid's temperature is lowered below its boiling point, and emphasizes heat exchange mechanisms such as conduction and convection in scenarios without vapor present, such as water in a pipe or an air conditioning system condenser.
PREREQUISITESStudents and professionals in thermodynamics, HVAC engineers, and anyone interested in the principles of heat transfer and phase changes in liquids and gases.
As mathman has asked, what condition do you have where there is no vapour present and only liquid.What is the heat energy removed from a liquid when vapor is no longer present.
256bits said:As mathman has asked, what condition do you have where there is no vapour present and only liquid.
For example, water in a pipe has no vapor present, and heat would be exchanged through the pipe walls via conduction, and perhaps convection, to the surroundings.