If you go above the critical temperature, it can’t exist as a liquid. It becomes a supercritical fluid at the critical pressure, below that pressure it’s just a high-pressure gas. That’s one pressure that can result.
However, if it’s a liquid and undergoes thermal expansion, it can exert much higher pressures. That’s why frozen water lines burst.
Companies like Linde have cleverly designed systems to cool air below the O2/N2 critical temperatures in stages to liquefy it. It involves JT expansion for cooling. Hydrogen is even tougher, it’s a lower temperature to be a liquid and it warms in JT expansion.
We’re getting close to solving that equation a couple of different ways with a combination of nuclear propulsion and an ion drive using hydrogen captured during the trip.
Office of Planning and Research in the form of a proposed “road diet.” This would essentially halt attempts to expand or improve our roads, even when improvements have been approved by voters.
The Joule-Thompson effect is a gas cooling (usually) when it drops pressure through a valve. Most gases do that, but hydrogen is an exception, it heats up. Hydrogen is an oddity from many angles.
Never going to happen without a serious depopulation of the country.
The problem with our roads is that they have not kept up with the population explosion since the fifties and this country abhors mass transit outside of the major cities.
Liquid air is air that has been cooled to very low temperatures (cryogenic temperatures), so that it has condensed into a pale blue mobile liquid. To thermally insulate it from room temperature, it is stored in specialized containers (Vacuum insulated flasks are often used). Liquid air can absorb heat rapidly and revert to its gaseous state. It is often used for condensing other substances into liquid and/or solidifying them, and as an industrial source of nitrogen, oxygen, argon, and other inert gases through a process called air separation.
I have no idea.
Only the Deagle people seem to know.
Probably Israel’s desperate attempt to execute the “Samson option” which will destroy America. Like biting the hand that has fed them for so long. You are a fool if you trust them.
