H!, I was wondering, if 1 ml of liquid propane (120 psi @ 70°F) is released into the atmosphere assume 14.696 psi (constant temperature), what will be the change in volume of what used to be 1 ml of liquid propane when changed to gas? From what i heard, the ratio for most gases expanded from liquid is 1:800 units. ^ I got it from some fun facts website years ago. given the difference in properties of different gasses i really doubt the 1:800 ratio, so please lend me a hand if you have the time :) Thanks ahead of time! Kirua follow up question, what is the diffuse velocity of the gas and how long will it take? Assume the 1ml propane is contained in a cylindrical canister with an circular opening of .75" dia.