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Joule-Thomson effect
Also known as the Joule-Kelvin effect. When a Gas expands through a porous plug, a change of temperature occurs, proportional to the pressure difference across the plug. The temperature change is due to a departure of the gas from Joule's Law, the gas performing internal work in overcoming the mutual attractions of the Molecules and thus cooling itself; and partly to deviation of the gas from Boyles law. The latter effect can give rise to either to cooling or heating, depending upon the initial temperature and pressure difference used. For a given mean pressure, the temperature at which the two effects balance, resulting in no alteration of temperature, is called the inversion temperature. Gases expanding through a porous plug below their inversion temperature are cooled, otherwise they are heated.
What else can I help you with?
How does diamond dust form?
Diamond dust forms when very cold air comes into contact with water vapor in the air. The water vapor quickly transitions from a gas to a solid state without passing through the liquid state, forming tiny ice crystals that give the appearance of diamonds floating in the air.
How would you separate gold dust from a mixture of iron filings and salt?
Mix with water, the pass through a filter paper. The salt will be dissolved in the water so it will be removed with the water, leaving the iron filings and gold dust on the filter paper. Leave this to dry then separate off the iron filings using a magnet, leaving behind the gold.
How do you get gold dust out of rock dust?
To separate gold dust from rock dust, you can use a method called panning. This involves adding water to the mixture and swirling it around in a pan. Gold, being denser than rock dust, will settle to the bottom of the pan while the lighter rock dust will wash away.
What is another word for powder?
Another word for powder is "dust."
What is a compound word for dust?
dustbindustpanstardustsawdust
When was Dust Yourself Off created?
Dust Yourself Off was created in 1975-07.
How did the kids die in the dust bowl?
cold
What is a cold dust girl?
Adventurous girl
What does cold dust girl mean?
Dirty girl.
What was is the adjective in the cold wind blew snow and dust across the road?
The adjective in the phrase "the cold wind blew snow and dust across the road" is "cold." It describes the noun "wind," indicating its temperature or characteristic.
When was Shake Off the Dust... Arise created?
Shake Off the Dust... Arise was created on 2004-10-12.
What are the ratings and certificates for Dust Off the Wings - 1997?
Dust Off the Wings - 1997 is rated/received certificates of: Australia:R
What is the adjective in the sentence the cold wind blew snow and dust across the road?
its freezing cold!!! it blows you and your papers away!!!!
Can dust mites set off smoke alarms?
yes, if enough dust accumulates
How d odust mights respond?
Itis not spelt Dust Might, it is spelt Dust Mite, the Dust Mite lives off of dead Human skin cells which flake off the body & make up about 97% of household dust
What was a dust off during the Vietnam war?
A "Dust-Off" was where a wounded American soldier/Marine was air-lifted to a medical facility ; so named because of the dust that was blown about from the helicopter blades .
How much psi does dust off have?
Dust off typically has a pressure of around 70 to 100 pounds per square inch (psi). It is important to use compressed air products like dust off carefully to avoid potential hazards.
