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There are two reasons. First, liquid nitrogen is colder than liquid oxygen and thus more effective at flash freezing. Second, liquid oxygen is a fire hazard; it creates an atmosphere of pure oxygen that allows substances to burn more easily. Nitrogen does not support combustion.
What else can I help you with?
Can liquid nitrogen freeze the wind?
No. The wind is composed of a small amount of water vapor and about 20% oxygen and about 80% nitrogen. The water vapor may freeze but the oxygen and the nitrogen cannot freeze at the temperature of liquid nitrogen. Oxygen has a much lower freezing point than liquid nitrogen and if the nitrogen were to be frozen, liquid nitrogen is not cold enough to freeze it...sort of like trying to make ice using cold water.
Can you make liquid oxygen?
Yes, freeze air until it becomes a liquid and perform fractional distillation. Oxygen, nitrogen and other gases will be produced.
Can liquid nitrogen actually freeze you?
according to research it can freeze anything with oxygen or tissue i am not certain if it can freeze objects such as computers, toys, cars, or anything metal but it can most definitely freeze you
What happens to nitrogen and oxygen in Pluto's atmosphere?
The freeze.
What is colder liquid nitrogen or liquid oxygen?
Liquid nitrogen is simply nitrogen gas in its liquid state. The stuff is so cold you can consider it like an acid if you are ever stupid enough to stick your finger in there without cryogenic protection. By immersing them in liquid nitrogen you can turn marshmallows hard as bullets, shatter flowers like glass, turn a soft peach into something that can hammer nails into wood, and a whole lot of other things.
Is liquid nitrogen an oxidizer?
dry ice −56.4 °C and liquid nitrogen is −196 °C
How can you get liquid oxygen using liquid nitrogen?
Liquid nitrogen is colder than liquid oxygen. You use the liquid nitrogen to chill the oxygen in the air and liquid oxygen will form. Liquid water and dry Ice (CO2) should also form due to their presence as well, but not in large quantity. WARNING!! High concentrations of oxygen should be considered dangerous. When exposed to a small ignition source, it can cause flammable materials to combust much like an explosion, and will cause normally non flammable materials to burn readily. Human flesh burns better than wood after being exposed to 100% oxygen for a period of time. Please be careful.
What element is used to freeze things?
Liquid nitrogen is commonly used to freeze things due to its extremely low temperature of -196 degrees Celsius. It is often used in laboratories and industrial settings to quickly freeze biological samples or materials.
How could you separate liquid nitrogen and liquid oxygen?
By fractional distillation. Allow liquid air to get less cold. At around 77.4K, nitrogen will boil off while oxygen will remain liquid. The temperature will begin to rise again when all the nitrogen has boiled off.
Will oxygen freeze faster than nitrogen if temperature was gradually lowered?
Yes, oxygen will freeze faster than nitrogen under the same conditions due to its higher freezing point (-218.8°C for oxygen compared to -210°C for nitrogen). Since oxygen freezes at a higher temperature, it will solidify more quickly as the temperature drops.
Which substance-oxygen or nitrogen- would freeze first if the temperature were gradually lowered?
If the temperature were lowered gradually enough for the substances to be in (approximate) thermal equilibrium, then nitrogen would freeze first. Nitrogen has an observed normal freezing point of 63.05 K, and oxygen has a freezing point of 54.85 K. As the temperature is lowered, nitrogen's higher freezing temperature occurs first.
What is the difference between nitrogen in the atmosphere and liquid nitrogen?
Liquid nitrogen is made by taking in air from the atmosphere and compressing and cooling it. Once it is cool enough, it forms a liquid. This liquid contains argon, oxygen and nitrogen. These elements are then separated and sold as a commodity. The temperature is the only difference.
