how is liquid nitrogen made?
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Liquid nitrogen is produced commercially from the cryogenic distillation of liquified air or from the liquefication of pure nitrogen derived from air using pressure swing adsorption. ... Small-scale production of liquid nitrogen is easily achieved using this principle.
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Liquid nitrogen is the liquefied form of the element nitrogen that's produced commercially by the fractional distillation of liquid air. Like nitrogen gas, it consists of two nitrogen atoms sharing covalent bonds (N2). Sometimes liquid nitrogen is denoted as LN2, LN, or LIN.
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Example of a Zero-Order Reaction The Haber processThe Haber process produces ammonia from hydrogen and nitrogen gas. The reverse of this process (the decomposition of ammonia to form nitrogen and hydrogen) is a zero-order reaction.
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['It was first made with a plastic cellulose nitrate that covered a glass beaker.', 'Today it is typically made from a series of glass layers that are laminated with plastic polycarbonate sheets, then glued together with ethylene-vinyl acetate. All of this comes out to be about three inches thick.']
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Nitrogen (N), the seventh element of the periodic table, is a colorless, tasteless, odorless gas. It is found in living tissues, amino acids, Ammonia, and Nitric Acid. Nitrogen; N2; is a colorless, tasteless, odorless, and nontoxic gas. It is made by passing air over heated copper or iron.
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Ammonia has pretty strong intermolecular forces because it can form hydrogen bonds, however it can't form as many hydrogen bonds per molecule as water and so its boiling point and melting point are lower than water's.
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It is known that it is possible to produce urea from natural gas in a two-step method. In a first step, nitrogen is bound as ammonia, and at the same time carbon dioxide is produced from the natural gas, while in a second method step the ammonia and the carbon dioxide are converted to urea.
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Ammonia is made out of three hydrogen atoms and one nitrogen atom, while bleach is created from chlorine, caustic soda and water. The composition of the chemicals makes bleach a stronger disinfectant, although both chemicals kill germs.
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According to Wikipedia, the latent heat of vaporization for nitrogen is 200 kiloJoules/kg. With 150 kg of water, this would be enough energy to convert 3.3 grams of liquid nitrogen to gas nitrogen.
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Liquid nitrogen makes vapors with extremely low temperatures. The danger comes from inhaling the nitrogen vapor. It can cause breathing problems, especially for those with asthma. The products in question are often sold in malls, food courts, fairs, and ice cream shops around the country.
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To make a Bose-Einstein condensate, you start with a cloud of diffuse gas. Many experiments start with atoms of rubidium. Then you cool it with lasers, using the beams to take energy away from the atoms. After that, to cool them further, scientists use evaporative cooling.
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A small casing, possibly containing liquid nitrogen, used by emergency services and in cryogenic weaponry.
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The chemical formula for nitrogen gas is N2 . Nitrogen gas is one of the diatomic elements, in which one molecule consists of two atoms of the same element bonded by one or more covalent bonds.
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Summary. The major forms of inorganic nitrogen are N2 gas, nitrate, nitrite, and ammonium. Organic nitrogen occurs in many forms, including amino acids, proteins, nucleic acids, nucleotides, and urea.
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Neon has a melting point of ‑248.59 C (‑415.46 F) and a boiling point of ‑246.08 C (‑410.94 F). Solid neon forms a crystal with a closely packed cubic structure. Because of its stable octet, the electronegativity and electron affinity of neon approaches zero.
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A small amount of nitrogen is fixed by lightning, but most of the nitrogen harvested from the atmosphere is removed by nitrogen-fixing bacteria and cyanobacteria (formerly called blue-green algae). ... Once nitrogen has been assimilated by plants, it can be converted to organic forms, such as amino acids and proteins.
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Ammonia (NH3) can be produced by the reaction of hydrogen gas with nitrogen gas: 3H2 + N2 = 2NH3. A chemist reacts 2.00 mol H2 with excess N2. The reaction yields 0.54 mol NH3.