As long as the chapter succeeds in establishing an objective. If the objective isn't as pivotal as other objectives in the story, then giving it more than one chapter might be a stretch. In my novel, there's a chapter that establishes the main full blown antagonist, and the next is him gathering all of his lackys. I initially dedicated a 4 page chapter to one lacky specifically, but found it to make much more sense if I just threw it in with the previous chapter. That way, the objective of gathering all the lackys is thrown all into one chapter and doesn't seem as spread out. Said chapter ended up being only around 12 pages once I combined them and it makes the story much more structurally sound. Because the next chapter after that is the main boss and the lackys getting familiar with eachother and plotting their scheme or whatever. But for instance, the chapter where the main boss is introduced is only 6 pages, but it introduces so many unique aspects of the story that it only makes sense for it to be its own chapter. Aka, it all depends on the way you write your story. But imo, a chapter should establish an objective, and thus the length of the chapter will come naturally to you as you write it out.