Question

Write the uses of nitrogen ??​

Answer 1

$\large{\pmb{\underline{\underline{\sf{Uses \ of \ nitrogen :-}}}}}$

$:\implies$ Used in the manufacture of nitric acid , ammonia , calcium cyanamide.

$:\implies$ Inert atmosphere for iron and steel industry.

$:\implies$ It is used as a refrigerant.

Answer 2

Answer:

Nitrogen is natural gas available in the air with a concentration of 78.09%.

It forms 78% of the earth’s atmosphere, making it the largest available element.

Chemically it is a combination of two atoms of nitrogen and each atom has 7 electrons.

But in the atmosphere, nitrogen exists in different forms like ammonia, oxides, organic compounds, etc.

It is available in almost all livings beings starting from bacteria to man.

It is a less expensive and safe gas and hence, it is widely used for industrial purposes.

Nitrogen Uses

Nitrogen can be used in the form of pure gas and also as a liquid.

Besides, it is also used in an elemental form where it forms various nitrogen compounds that are used by man for daily needs.

Uses of nitrogen gas

1. In health care for respiratory assistance.

In patients who have respiratory insufficiency due to disorders like COPD & emphysema, nitrogen gas is needed. Due to a decline in lung capacity, these people cannot breathe sufficient oxygen from the air. So they are given oxygen therapy. Here oxygen gas is given in combination with nitrogen. Nitrogen Uses100% oxygen is toxic to breathe us. So oxygen is combined with nitrogen at a certain ratio and given to breathe by tubes directly inserted into the nose.

Here, nitrogen is preferred because in the air we breathe, there is a nitrogen concentration of 70% while oxygen is 21 %. So in treatment, it is safe to combine oxygen with nitrogen. But the only difference to air is oxygen concentration is higher.

2. In gas chromatography

In chromatography, it is used as a carrier gas or mobile phase gas. This is specifically preferred due to features like non-reactivity, neutrality and commercially cheaper to other gases used in gas chromatography.

3. To remove excess solvent.

This is practiced especially in research. When a substance is broken down in an organic solvent, the excess solvent is removed by passing a stream of pure nitrogen gas after the process. Evaporation can also be done to remove the excess solvent by heating. But when the substance or sample is heat sensitive or gets damaged due to heat, then it needs a non-heat method of drying. Hence when nitrogen is passed through, it carries away organic solvent gradually. Thus the solution gets concentrated.

4. Inflation of tires

Nowadays, nitrogen gas is widely used for inflation of tires instead of normal air. Nitrogen gas helps in a longer duration of inflation, longer tire life due to lack of rubber oxidation. It is also believed that it helps in a smooth drive without chances of tire bursts.

Explanation:

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