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The ED spectrometer is comprised of a liquid nitrogen (LN2) dewar, Si crystal, and preamplifier. The special Si crystal is mounted at the end of the detector located closest to the specimen. When X-rays strike the Si crystal very small signals are produced. These signals are amplified in the detector and sent on to the analysis electronics in the computer for further processing. The crystal is cooled by a cold finger, an extension of the LN2 dewar. Liquid nitrogen cools and therefore stabilizes the electronic properties of the crystal, improving the measurements of minute X-ray signals.
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How do i liquify oxygen?
The simple awnser is cool it. You can use liquid nitrogen to do this.
What substance is use to deep freeze?
Liquid Nitrogen or Dry Ice (Carbon Dioxide)
Can liquid nitrogen be used for snap freezing?
Yes. This is a very common use in the frozen food industry.
How do you handle liquid nitrogen?
When handling liquid nitrogen, it is important to follow proper safety precautions. Wear appropriate personal protective equipment such as gloves, goggles, and a lab coat to protect skin and eyes from contact. Handle liquid nitrogen with insulated gloves or tongs to avoid direct contact, and ensure adequate ventilation in the working area to prevent build-up of nitrogen gas. Also, be aware of the risks associated with the extreme cold temperatures and rapid evaporation of liquid nitrogen.
What is the volume of gas at Room Temperature and Pressure yielded by 25 Litres of liquid nitrogen?
To work this out there are two possible methods, the first uses knowledge about densities: At it boiling point, Liquid Nitrogen has a density of 807.0 grams per liter At Standard Temperature and Pressure, Nitrogen Gas has a density of 1.251 grams per liter Thus:- 25 liters of Liquid Nitrogen will weigh 25*807 = 20175 grams At STP 20175 grams of Nitrogen Gas will occupy 20175/1.251 = 16127.1 liters. The second method is to use the published expansion ratio for Liquid Nitrogen: Liquid Nitrogen has a liquid-to-gas expansion ratio of 1:694 at 20°C (68 °F) Thus:- 25*694=17350 liters. You will see the numbers are similar but slightly different, of the two I would be more confident in the density calculation method result. Although I suspect most people would use the expansion ratio method.
Why do rockets use liquid nitrogen?
Rockets typically use Liquid oxygen and liquid hydrogen for fuel. I suspect this is what you are asking. I know of no rocket that uses liquid nitrogen.
Why does the gas liquid nitrogen have these use?
because most of our atmosphere has nitrogen in it
Why don't they use liquid nitrogen to put out wildfires?
Because it's dangerous.Because liquid nitrogen is expensive and inconvenient.Because liquid nitrogen will instantly evaporate once it comes close to fire.
Is liquid nitrogen used in refrigerators for cooling?
No. Refrigerators use a substance called Freon that can readily change from liquid to gas to liquid, moving heat from inside the fridge to the outside. Liquid nitrogen is FAR too cold, and requires too much energy to make the change from gas to liquid.Yes, liquid nitrogen is used in refrigerators. Nitrogen is a diatomic gas. The two nitrogen atoms are bond with a triple bond.
Why do you use helium to super-cool magnets and why not use liquid nitrogen?
Liquid nitrogen is not cold enough to supercool some superconducting magnets to make that magnet's superconductive properties emerge. It takes something like liquid helium to do that.
How do i liquify oxygen?
The simple awnser is cool it. You can use liquid nitrogen to do this.
Which material is used for the cooling in refrigerators?
use of liquid nitrogen in refrigerator
What kind of fuel does the space shuttle use?
A space shuttle uses a combination of liquid oxygen and liquid nitrogen.
Can the use of liquid nitrogen on your skin cause an allergic rash?
No. Nitrogen does not irritate skin. But liquid nitrogen is extremely cold, and it can damage and kill skin (and other) tissue. It is a bad idea to allow your skin to come into contact with liquid nitrogen. Note: Some warts are "frozen" in an effort to remove them. In a clinical setting, liquid nitrogen is sometimes used to super-cool an instrument so the wart can be frozen. But this is a medical procedure and is done by professionals. Liquid nitrogen is not something that should be looked upon as a "toy" or "recreational plaything" by anyone.
How do you frozen plant sample in liquid nitrogen?
put it inside an eppendorf tube and throw in liquid nitrogen. of course it depends what you are planning to do in next step. you can use a mortar and pestle if you want to grind.
What substance is use to deep freeze?
Liquid Nitrogen or Dry Ice (Carbon Dioxide)
Is liquid nitrogen unhealthy for you?
It's not bad for you as it is what they use to freeze off warts from your skin.
