I had the same issue with study hours until we went to the sliding scale system which greatly reduced how many hours I had to do

I did have a hard time focusing when there were lots of people around, even when they were quiet. I often tutored other sisters during study hours, which was still helpful to the chapter's overall goal... maintaining a high GPA. We had "honor hours" where you just turned in your hours and "proctored hours" which included library hours with sisters or labs of any kind, actually. The higher your GPA, the fewer "proctored hours" you had to do. I could see it becoming social hour pretty easily under some circumstances. They usually included time at the tutoring center as proctored hours too. I think chapters need to find what works for their group.