Enter Russell Newquist. The man has been tearing up the scene lately. His spirited defense of his publishing house's writers are epic, but it's his writing advice you should really study. His latest, a two-parter on how to write page-turners is particularly illuminating.
In part one he provides actual mathematical numbers:
Be the page turner. Keep your chapters short. My average chapter length for Post Traumatic Stress is 1450 words. That’s only two manuscript pages, and only about a half dozen book pages.Part two provides more structural advice:
One easy way to end your chapter on a hook is to take the first sentence of your next chapter and move it to the end of your current chapter.If you want people to say they couldn't put your book down, go thou and do likewise.