Ok this is definatly a bit more chem than math, but since chem is math . . .

Anyways, I am lookin to do some minor experiments at home this weekend and the only thing i still need is an equation for heat dispertion. I'm not sure what the exact theory/equation is called so its very hard to just google for it.

What i need is the equation that dictates the results of the following circumstance.

How long will it take for X-amounts of a liquid at T-temperature to drop below 32 degrees f when put into a freezer with an ambient temp of C.

I do remember from way back in chem that these types of equations have many factors such as atmospheric density and the such, but i am just going to null those since i don't need to be that painstakenly accurate in my calculations.

Any help would be awesome.

Edit: i should probably add the liquid in question is water. that will probably affect the equation.