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Liquid nitrogen is a compact and readily transported source of dry nitrogen gas, as it does not require pressurization. Further, its ability to maintain temperatures far below the freezing point of water, specific heat of 1040 J ⋅kg -1 ⋅K -1 and heat of vaporization of 200 kJ⋅kg -1 makes it extremely useful in a wide range of applications ...
Liquid nitrogen is formed when nitrogen is cooled to temperatures far below zero. The density of liquid nitrogen is 806.59 kg/m³ at atmospheric pressure and an energy capacity of 199.32 kJ/kg. In its liquid form, it manifests itself very similar to water.
18 Ιουλ 2022 · 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 (N 2). Sometimes liquid nitrogen is denoted as LN 2, LN, or LIN.
12 Σεπ 2022 · Nitrous oxide resembles oxygen in its behavior when heated with combustible substances. N 2 O is a strong oxidizing agent that decomposes when heated to form nitrogen and oxygen. Because one-third of the gas liberated is oxygen, nitrous oxide supports combustion better than air (one-fifth oxygen).
Nitrogen is a component of proteins and of the genetic material (DNA/RNA) of all plants and animals. Under ordinary conditions, nitrogen is a colorless, odorless, and tasteless gas. It boils at 77 K and freezes at 63 K. Liquid nitrogen is a useful coolant because it is inexpensive and has a low boiling point.
3 ημέρες πριν · liquid nitrogen. Nitrogen is a colourless, odourless gas, which condenses at −195.8 °C to a colourless, mobile liquid. The element exists as N 2 molecules, represented as :N:::N:, for which the bond energy of 226 kilocalories per mole is exceeded only by that of carbon monoxide, 256 kilocalories per mole.
14 Δεκ 2021 · Liquid nitrogen is the liquefied form of nitrogen gas. Like nitrogen gas, liquid nitrogen is clear, odorless and non-toxic. The boiling temperature of liquid nitrogen is −195.79 °C (77 K; −320 °F).
