Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

? asked in Science & MathematicsChemistry · 2 weeks ago

How do you make fuel out of water?  ?

7 Answers

Relevance
  • Anonymous
    1 week ago

    step 1

    poop in water

    step 2

    profit

  • 1 week ago

    You bottle it and make lots of profit selling the water so you can buy fuel. You can convert water to hydrogen, but that costs more money than the energy you get back.

  • ?
    Lv 7
    2 weeks ago

    You are right derfram, you won’t get as much energy back, the same can be said about electric cars. I suppose if the energy source is green and renewable, it’s a feasible solution.

  • Dr W
    Lv 7
    2 weeks ago

    use electrolysis to convert H2O to H2 + O2

    reduce CO2 from atmosphere to COuse fisher tropsch method to convert CO + H2 to hydrocarbons  CxHyreact CxHy (fuel) + O2 to form CO2 + H2O

  • 2 weeks ago

    Add energy and split the water back into H2 + O2.  Then burning the H2 + O2 will produce energy.  But please realize there are inefficiencies in any real world process and you will not get as much energy out as you put in.  In other words, trying to turn water into fuel is a losing proposition. 

  • 2 weeks ago

    Water is an oxide, which means it is a product of combustion. In other words, it is an ash, of sorts. If you desire to make water into a fuel, then you need to reverse the combustion process by adding energy. Splitting the water molecule into Hydrogen and Oxygen will accomplish this, and the Hydrogen then is your fuel. 

    Cheers. 

  • 2 weeks ago

    You can use electrolysis to split water into hydrogen and oxygen:

    2 H2O --> 2 H2 + O2

    When those two are reacted to form water, energy is released. 

Still have questions? Get answers by asking now.