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  Discuss the reasons why hydrogen is liquefied and the benefits associated with this effort. Explain how...

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Mechanical Engineering

 

Discuss the reasons why hydrogen is liquefied and the benefits associated with this effort.

Explain how a fuel cell produces electrical current.

What is double-layer technology?

Select one:

a. two activated-carbon electrodes are immersed in an organic electrolyte

b. an internal combustion engine

c. an electric motor or motors

d. none of the above

Describe the fuel cell that is best suited for automotive applications and explain the reasons why.

Answer & Explanation Solved by verified expert
4.0 Ratings (721 Votes)
Hydrogen is Liquefied Liquefaction of gases is a significant portion of cryogenics and the gases are Nitrogen Hydrogen Oxygen etc The elementary concept backing liquefying the gases is as they have a very less boiling point as soon as they are liquefied they can be used to produce very low temperatures if permitted to boil by absorbing heat from the environment According to thermodynamics a perfect gas will not undergo any variation in temperature when it is subjected to non reversible expansion So real gases undergo a reduction in temperature during free expansion Because in real gases there are forces joining the atom they are not perfect particles but contain some amount of volume also The basic idea is based on the Joules Thomson effect Pure Hydrogen gas is compressed to a high pressure and high temperature It is significant to utilise pure Hydrogen because dirt particles can solidify later creating problems in the structure The hot compressed gas is progressed between double heat exchangers and    See Answer
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