Question: What are the disadvantages of hydrogen?

Which of these is a disadvantage of hydrogen fuel cells?

There are disadvantages to using hydrogen-oxygen fuel cells in cars. These include: hydrogen is in the gas state at room temperature and pressure, so it is difficult to store in the car. fuel cells and electric motors are less durable than petrol engines and diesel engines, so they are not so long-lasting.

What is the main advantage of burning hydrogen and what is the main disadvantage?

When hydrogen is burned, it doesnt emit harmful substances. Basically, it reacts to oxygen without burning and the energy it releases can be used to generate electricity used to drive an electric motor. Also, it doesnt generate carbon dioxide when burnt, not unlike other power sources.

What are the pros and cons of hydrogen?

Hydrogen fuel cells Pros: No vehicle emissions other than water vapor. Fuel economy equivalent to about twice that of gasoline vehicles. Hydrogen is abundant, and can be made from renewable energy. Cons: This space-age technology is expensive.

What are the risks of hydrogen energy?

In enclosed locations with normal temperatures, spilled liquid hydrogen will create enormous gas pressures, tearing apart vessels without safety valves. The two prime dangers from fuel cell and hydrogen-powered vehicles are the danger of electrical shock and the flammability of the fuel.

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