Before asking this question, I went through many questions asking about almost the same question I have. Most of them stated that a question which doesn't 'fit' in SE's policy are downvoted (Eg: A homework question with no attempt at all).
I recently asked a conceptual question on chemistry SE and the same on physics SE, because it was about thermodynamics and that topic fits well in both the subjects.
The votes on my question are quite different on different sites. I am surprised, is my question really appropriate or not?
I am not sad about the downvotes at all. But, I was wondering why there is difference. My question is good for physics SE and bad for chemistry SE?
Also, what type of questions should be downvoted?
Edit: My Chemistry SE question has +3/-3 votes.