A free expansion is typically achieved by opening a stopcock that allows the gas to expand into a vacuum.
12.
If there is also no work done, i . e . a free expansion, there is no change in internal energy.
13.
This is what happens in a Joule-Thomson expansion and can produce larger heating or cooling than observed in a free expansion.
14.
Only below its Joule-Thomson inversion temperature ( of about 32 to 50 K at 1 atmosphere ) does it cool upon free expansion.
15.
I propose to direct readers from the " Free expansion " page ( which is poorly developed ) to the " Joule expansion " page.
16.
After thermal equilibrium is reached, we then let the gas undergo another free expansion by ? " V " and wait until thermal equilibrium is reached.
17.
Chairman Alan Greenspan had nothing to say about the decision, but most analysts said that means the Fed is satisfied with the economy's relatively inflation-free expansion.
18.
Although it would be difficult to achieve in reality, it is instructive to imagine a free expansion caused by moving a piston faster than virtually any atom.
19.
Free expansion packs were released, some of which were bundled with a 2000 re-release : " "'Unreal Tournament : Game of the Year Edition " " '.
20.
There are two Universal Serial Bus ports, including one on the front of the computer, and one free expansion bay and one open PCI expansion slot, and two ISA slots.
