A hydrogen Vehicle

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                        Science Homework: Hydrogen Vehicles (Debate)

A hydrogen vehicle is a vehicle that uses hydrogen as its on-board fuel for motive power. Hydrogen fuel cell cars exploit the significant chemical energy in hydrogen through a process of electrochemical conversion. In this process of fuel-cell conversion, hydrogen is reacted with oxygen to produce water and electricity, the latter of which is used to power an electric traction motor.

Many articles read covering specific fuel cell cars point out the cost of the car, usually in the millions of dollars. But this dollar figure has no relation to any hydrogen fuel cell production vehicle that will eventually be offered for sale. These research cars are hand-built and use experimental technology created in limited amounts. The most expensive material used in these cars is the platinum covering the nodes in the fuel cells. Other than that, the car consists of motors, wheels, a frame, and body. And there are even fuel cells under development using different, cheaper materials. Evaluating this I would say it is fair that hydrogen fuel cell cards are expensive because there are limited amount of them and are experimental. But in the future, if it were made in a world-wide scale I would expect the prices of them to fall down because in the past combustion cars were only for the wealthy but them everyone could get them. However unfortunately there is no readily available source of molecular hydrogen (H2) to be found on our planet. There is lots of hydrogen, but it is found as part of larger molecules, most commonly water or hydrocarbons. To be able to use hydrogen in a fuel cell, those hydrogen atoms must be stripped from hydrocarbons and reformed into H2 or electrically disassociated from oxygen in water. This is factual as hydrogen gas like helium gas just floats off into space as it is lighter than the gases that make up the air.

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Would hydrogen vehicles be practical for owners? Hydrogen cars require less maintenance than gasoline cars. Dennis Weaver said in an interview with Motor Trends, "Running on hydrogen extends engine life and reduces maintenance, as no carbon builds up in the combustion chamber or on the spark plugs and the blow-by gases are so clean that the oil rarely needs to be changed”. Dennis Weaver argument is true as hydrogen doesn’t build up on surfaces however using hydrogen makes it very venerable to catch aflame and must be insulated very cautiously. Conversely hydrogen cars cannot be charged at home like electric cars. ...

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