With a fiction novel that is about 400 pages long, is there a set number of pages required for a chapter?

Use your own chapter lengths. There are no set guidelines. I finish a chapter when it's logical to finish it within the framework of the novel. Some are ten pages, some are three. Some are one. Depends on what you're trying to say and how quickly you can say it.

A chapter is a collection of paragraphs.

A paragraph is a collection of sentences.

A sentence is a collection of words.........and so on.

A story teller decides the flow of the story and divides into paragraphs and chapters. This is done to assist the reader in following the story or the subject matter being discussed in the book. And the divisions are never made according to a mathematical or arithmetical theory. Could you or anyone write about a small incident in set number of words and paragraphs? Or was the question posed for the sake of saying something as an opener to a conversation?!

There is no set limit. Look at James Patterson. He is a famous writer and has been writing for years. His chapters are all really short. Some people do not even use chapters so it is completely up to the writer.

no, the books may have many chapters with different number of pages for it. for example, my translation of the Lotus Sutra has one chapter that has only 2 pages and one chapter that has more than 30 pages. also 16 chapter of another book has more than 100 pages. so there are no rules about that.

It is entirely up to you.

To make a book easier to read, however, it is advisable to break it into chapters (or any other type of break) of around 20-30 pages. This is merely a convenience for the reader, but can be used by you as the writer to creat brekas in your plot, cliff-hangers, narration breaks, etc., etc.

On average you should have it spaced between 5 to 10 pages. 30 is waaay too long! lol

the only standard is likely to be that all of your chapters be "similar" lengths, but there is no set guideline.

well actually my step dad just published his book it's 300 and something pages long, but the chapters are rather short...4-5 pages each...but you should check it out...go to amazon and search "Angel View from Dodd Mountain" it is historical fiction but based partly on true stories...def check it out...i included the link below...

There are no set guidelines.

no