###### Asked in InventionsChemistry

Inventions

Chemistry

# How much electricity we get from 1 kg of hydrogen?

## Answer

###### Wiki User

###### February 28, 2008 4:11PM

For answers to any of your hydrogen-related questions, just ask the MIT PhD who currently runs a company that manufactures hydrogen production technology. His company is called Avalence (www.avalence.com) and his name is Marty Shimko. His contact information is on the website under contact. Enjoy! For answers to any of your hydrogen-related questions, just ask the MIT PhD who currently runs a company that manufactures hydrogen production technology. His company is called Avalence (www.avalence.com) and his name is Marty Shimko. His contact information is on the website under contact. Enjoy!

## Related Questions

###### Asked in Elements and Compounds

### 2 kg hydrogen?

###### Asked in Energy

### How much energy is produced when 1 kg of hydrogen is converted into helium?

Technically, the energy is not produced - it is changed from one
form to another.
Hydrogen-1 has a molar mass of 1.00795; thus, 1 kg of hydrogen
has 1 / 1.007825 = 0.99224 moles.
Every 4 atoms of hydrogen will combine into one helium; thus, in
the end result there will be 0.99224 / 4 = 0.24806 moles.
Helium has a molar mass of 4.0026. Thus, the 0.24806 moles will
have a mass of 0.99288 kg. The difference in mass is 1 kg minus
0.99288 kg = 0.00712 kg.
Multiplying this by c2, you get an equivalent mass of 0.00712 x
(3 x 108)2 = about 6.4 x 1014 joules.

###### Asked in Atoms and Atomic Structure

### How much water is made using 2kg hydrogen and 16kg of oxygen?

This equation and finding the limiting reactant.
2H2 + O2 -> 2H2O
2 kg H2 (1000 g H/1 kg H)(1 mole H/2.016 grams)
= 992 moles hydrogen
16 kg O2 (1000 g/1 kg)(1 mole O2/32.0 grams)
= 500 moles oxygen
I suspect hydrogen limits. Let's see.
992 mole H2 (1 mole O2/2 mole H2)
= 496 moles O2
You have just a bit more than this in oxygen, so enough and
hydrogen limits. ( check by going the other way and see the
hydrogen limits )
So, hydrogen drives the reaction.
2 kg H2 (1000 g/1 kg)(1 mole H2/ 2.016 g)(2 mole H2O/2 mole
H2)(18.016 g/1 mole H2O)(1 kg/1000 g)
= 17.87 kilograms water made
=========================( you do the significant figures )

###### Asked in Math and Arithmetic, Scientific Method

### How much hydrogen is enough to lift up 1 kg weight from the ground?

The weight of standard air is 1.2256 Kg/ Cubic Meter
The weight of hydrogen is 0.0857 Kg/ Cubic Meter
The weight of helium is 0.1691 Kg/ Cubic Meter
Subtracting the weight of hydrogen from air gives you the gross
buoyant lift of hydrogen as 1.1399 Kg/Cubic Meter
Subtracting the weight of helium from air gives you the gross
buoyant lift of helium as 1.0565 Kg/Cubic Meter
These values are variable under altitude, pressure, temperature,
humidity and purity of gas.
Hope this helps you.