This is for the pretent experts, who can't contribute, except as a parasite. I will explain it so even you can understand. Hold the yucky comment until you read the entire thing, OK. We will set two experiments. The first will have a beaker of water with a partitian. On each side of the partitian will different cations. K+ in the left and Na+ on the right. The second beaker will have a uniform solution of the same cations. Since the entropy of the universe is increasing, the two choice are; 1. the partitioned cations will form a uniform solution. 2. the uniform solution will partition. The steady beakers will tell us higher entropy. The uniform solution will be at higher entropy and the segregation is low entropy. If you studied entropy, you must have slept that day.