agesilaus wrote:
Helium in the bottles that you can get is NOT cryogenic, meaning it's at room temp. .
You are half right.. You forgot Boyle's Law
WikipediaWhich says that as the highly compressed gas in the room temp (or ambient air temp) tank escapes and expands the amount of heat per cubic foot remains the same so it comes out the nozzle.. Very very very cold. Over 100 below Zero.
With the bottle on its side liquid will be escapign the relief valve. and .. Well now you are looking at the vapor temp of the product at one standard atmosphere.. that's very close to absolute zero when it comes to helium.
