hydrogen fuel cell car

Global warming: Does it take MORE energy to create hydrogen than PROVIDED in hydrogen fuel cell cars?

 

The round trip is a net loss isn't it? We use electricity to convert H2O into H and O.

Then in a hydrogen fuel cell car, we RE-convert the H and O back into H2O again.

So it is a round trip.

But since every mechanical device LOSES energy through friction and heat and waste, the round trip from H2O to H & O and back to H2O LOSES energy.

Isn't this right? So how will a hydrogen economy run the country or replace oil-burning cars?

Could a person use a device that splits water like for hydrogen fuel cell car but keep oxygen for scuba diving?

 

I heard that this canadian invented a device that splits water into hydrogen and oxygen. Companies use this device to store hydrogen in tanks until it can be used for a hydrogen fuel cell car(like they do in iceland). My question is can you store the Oxygen instead to go on the ultimate scuba adventure? My dads a scientist, but we’re not talking right now so I thought I would ask here.

where could i find a web site for a science fair project to build a battery powered cars for the science fair?

 

i need to make a battery powered car to test with a hydrogen fuel cell car for the science fair coming up on june 16th and i need the steps on building a battery powered car. i need a step by step process in building this car.

E85 fuel car (4 questions)?

 

1.Other than these marks, Chrysler, Ford, General Motors, Isuzu, Mazda, Mercedes, Mercury, Nissan, are any other comapanies such as Subaru planning to make e85?

2. How is e85 made. What is it made out of other than corn?

3.Are there any pros and cons about e85?

4.Like the hydrogen fuel cell car can i make home made e85? Can i make a mini car and test?