# Torricelli's law generalized

Since we never faced in a deep way the dynamics of fluids, and related subjects, I was wondering about this: as a very particular case of Bernoulli's theorem, we get Torricelli's law for some fluid coming out from a hole in a recipient.

$$v = \sqrt{2gh}$$

1) Shouldn't the velocity depends upon the largeness of the exit hole?

2) What about the density or the viscosity of the fluid? It's quite obvious that if we take water and sulfuric acid, or water and liquid mud we don't get the same velocity.

So.. does anybody know what is the "correct" Torricelli's law? References are good enough, unless you want to give me some answer to cut it shortly.