First let me apologize for any spelling mistakes as I am on a mobile device. Second I do have a few questions regarding thermodynamics for a project I would like to begin. 1) is there a way to calculate a volume of water in either the amount of time and the amount of energy required to make it boil? 2) I will paint a picture for this one. I have one copper tubing inside another. The outer tube has water flowing opposite to the fluid in the inner tube. The goal here is to have the water cool the inner fluid to a certain temperature. I understand these may be slightly vague and I know I did not give hard numbers so formulas should work just fine (for now lol). I have tried searching google and this forum for some answers but I do not know if what I'm looking for, and what I've found has been correct. Thanks for the help everyone (and if this is in the wrong forum can a mod please move it to the correct area, thanks).