../ PHYS 270 - Change in Entropy [vWwlQ2py19Y].webm 19-Oct-2020 09:08 18035444 PHYS 270 - Reversible and Irreversible Processe..> 19-Oct-2020 08:47 14374222 PHYS 270 - The Second Law of Thermodynamics [xU..> 19-Oct-2020 09:15 7506540