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zubka84 [21]
3 years ago
8

What are the uses of hydrogen? ​

Chemistry
2 answers:
Akimi4 [234]3 years ago
8 0

<u>Following are some important uses of hydrogen:</u>

•Hydrogen is used in the synthesis of ammonia and the manufacture of nitrogenous fertilizers.

•Hydrogenation of unsaturated vegetable oils for manufacturing vanaspati fat.

•It is used in the manufacture of many organic compounds, for example, methanol.

Agata [3.3K]3 years ago
3 0

USES OF HYDROGEN

  • commercial fixation of nitrogen from the air in the Haber ammonia process hydrogenation of fats and oils

  • methanol production, in hydrodealkylation, hydrocracking, and hydrodesulphurization rocket fuel
  • welding
  • production of hydrochloric acid
  • reduction of metallic ores
  • for filling balloons (hydrogen gas much lighter than air; however it ignites easily) liquid H2 is important in cryogenics and in the study of superconductivity since its melting point is only just above absolute zero

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It takes 495.0 kJ of energy to remove 1 mole of electron from an atom on the surface of sodium metal. How much energy does it ta
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Answer:

\lambda=241.9\ nm

Explanation:

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So,  

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Energy required = 82.18\times 10^{-20}\ J

Also, E=\frac {h\times c}{\lambda}

Where,  

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So,  

79.78\times 10^{-20}=\frac {6.626\times 10^{-34}\times 3\times 10^8}{\lambda}

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\lambda=\frac{10^{-26}\times \:19.878}{10^{-20}\times \:82.18}

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