The Mudcat Café TM
Thread #148889   Message #3461912
Posted By: Joe_F
05-Jan-13 - 06:15 PM
Thread Name: BS: How Cold Can it Get?
Subject: RE: BS: How Cold Can it Get?
I went thru this on FB, but I might as well do it here too. Systems with negative temperature are not colder than cold, but hotter than hot. When put in thermal contact with the environment, their temperature goes down to minus infinity, jumps to plus infinity, and then cools down to the ambient. Thus, the third law of thermodynamics, which forbids attaining a zero temperature, is not broken.