The number of chapters in a volume of a novel can be quite inconsistent. It depends on factors like the author's writing style, the genre, and the publisher's formatting. Usually, it could range from 8 to 20 chapters.
Well, there's no fixed number. It could be as few as 5 or as many as 30 chapters in a volume of a novel. It all depends on how the story unfolds and how the publisher decides to divide it.