Substance evaporation temperature

by indianaronald
Tags: evaporation, phase change, saturation
indianaronald is offline
Jan20-13, 01:50 AM
P: 21
Can a substance only evaporate at the T(sat) at that particular pressure and why not even at a higher temperature?
Example of a refrigerant at room temperature, pressurized container. But when it's opened, the P falls and T(sat) falls, so it goes to that T(sat) temperature to evaporate. But why? Why not evaporate at the room temperature itself?
Phys.Org News Partner Physics news on
Better thermal-imaging lens from waste sulfur
Scientists observe quantum superconductor-metal transition and superconducting glass
New technique detects microscopic diabetes-related eye damage
mfb is offline
Jan20-13, 05:34 AM
P: 10,774
Evaporation reduces the temperature of the surface until you have an equilibrium (or something close to it) at the surface.

Register to reply

Related Discussions
Why does the physical state of a substance primarily depend on its temperature? General Physics 11
isobaric evaporation, why the temperature must be constant? Introductory Physics Homework 1
What is temperature in non-molecule substance? Classical Physics 12
Does exposure to a radioactive substance make another substance radioactive? General Physics 5
express the density of a solid substance varying with temperature Introductory Physics Homework 1