2010 Midterm Question #3 Part B
Posted: Sun Feb 07, 2016 2:44 pm
Question 3 involves a thermodynamic process in which a system is kept at 300K and is free to expand. In Part A it asks for q, w, deltaU, and deltaS for the system assuming it undergoes isothermal, reversible expansion. Part B asks for the same values but now assuming it is an isothermal, free expansion process in a vacuum. So since deltaU, q, and w are all 0 here wouldn't deltaS also be 0? It says the deltaS would just be the same as part A but I do not see why.