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That depends exactly what type of energy you are talking about.
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∙ 13y ago
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Why can't we make water?
We can, by igniting hydrogen and condensing the vapours. But it takes more energy to produce hydrogen!
How is hydrogen an alterative energy source?
Since there are no significant amounts of free hydrogen, it should be considered more of an energy storage than an energy source. In other words, it takes energy to separate water into hydrogen and oxygen; you get that energy back when the hydrogen is burned.
How can water be used as electrical energy?
There is no useable electrical energy in water. But if by electrolysis the water can be split into separate hydrogen and oxygen components which are collected separately, the hydrogen can be burnt as a fuel. When the hydrogen is burnt, no more energy is produced than what went into the original electrolysis, so the water is not a source of energy, it is more of a way to store energy. Moving water can be used to generate electricity, in hydroelectric schemes and in tidal and wave generators.
What are the disadvantages of using water as a hydrogen fuel source?
It takes more energy to separate the hydrogen than we can get at the end.
How does hydrogen bonding of water facilitate the human body in cooling itself?
The more strongly a liquid bonds to itself, the more energy is needed to convert it into the gas phase. Because water is more cohesive as a liquid due to hydrogen bonding, more heat energy is carried away by water molecules that evaporate.
Is sea water renewable?
No. Trees and Plants are renewable, we can make more. We can not make more water, we will always have the exact same amount, unless a meteor, which contains small amounts of water, strikes the earth.
Oxygen and hydrogen helps to fire then why water prevent fire?
The electrons in the oxygen and hydrogen have a high amount of energy which is released when the oxygen and hydrogen combine to form water. The electrons are in a more stable set of bonds. The water then has no chance of bonding to decrease energy, so the water absorbs heat by cooling and boiling, so that the fire goes out.
Will the energy produced on combustion of hydrogen be more than the energy used for separation of hydrogen from water through electrolysis?
In theory, the energy produced by creating four oxygen-hydrogen bonds after breaking two Oxygen-oxygen and hydrogen-hydrogen bonds in the reaction O2 + 2H2 -> 2H2O (hydrogen combustion in oxygen) is exactly the same than the energy needed to break four oxygen-hydrogen bonds to create two oxygen-oxygen and hydrogen-hydrogen bonds in the reaction 2H2O -> O2 + 2H2 (water electrolysis) However, you will always have great energy loss during electrolysis (an important part of your energy will be used to warm up your water) and in getting back your energy from your oxygen and hydrogen gas (a combustible battery or a motor will warm up too).
Does the reaction that separates water into hydrogen and oxygen absorb or release energy?
Endothermic reaction is the breakdown of water into hydrogen and oxygen and this cause for energy to be absorbed
Would it be easier to separate the sugar from the water or to split water into hydrogen and oxygen?
it is easy to separate sugar from water. allow the water to evaporate to get back sugar. splitting of water into hydrogen and oxygen requires more energy than the above.
What is the difference between hydrogen fuel cells and hydrogen fusion?
More energy is produced per reaction in a fusion reaction than in a fuel cell. -Apex
Is energy in water from hydrogen molecules?
No. The hydrogen and oxygen in water are combined into a single substance; it does not get one property from hydrogen or another from oxygen but rather has its own unique set of properties based on how they are combined. It is unclear what "energy" you are referring to.
