how to separate nitrogen from a mixture of nitrogen and oxygen
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It is usually done by fractional distillation at very low temperatures. It can also be done by membrane separation. About 78 per cent of the air is nitrogen and 21 per cent is oxygen. These two gases can be separated by fractional distillation of liquid air.
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Nitrogen from the air can be isolated by the method fractional distillation. The liquid oxygen and nitrogen are then separated by fractional distillation. The liquefied gas is get into bottom of a fractionating column.
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