Read about irreversability | 2 Discussions | Page 1

  1. Rahulx084

    Irreversible quasi-static processes?

    I read an example where if I go from initial to final state extremely fast (gas inside a piston cylinder assembly) , the gas inside it will be very unhappy, its not going to stay in equilibrium, parts of the system are going to be at different pressure and parts of it at something other...
  2. entropy1

    B Entropy, irreversability, and the arrow of time

    It is said that entropy causes an arrow of time. However, how about the irreversability of a measurement like electron spin. When measured a certain spin, the previous value gets lost. So does that also require an arrow of time?