1. The problem statement, all variables and given/known data Indicate how entropy of the system changes for each of the physical processes shown below. Entropy increases, entropy decreases, entropy does not change. 1. Purification 2. Mixing 3. Freezing 4. Evaporation 5. Separation 2. Relevant equations Entropy increases when it goes from less to more disorder. Entropy decreases when it goes from more to less disorder. 3. The attempt at a solution Purification - many to one substance, so entropy decreases Mixing - many to one substance, so entropy decreases Freezing - more to less disorder, so entropy decreases Evaporation - less to more disorder, so entropy increases Separation - one to many substances, so entropy increases These are wrong, but I can't think of why. Help is much appreciated.