How much hydrogen is produced in electrolysis of water?
Table of Contents
- 1 How much hydrogen is produced in electrolysis of water?
- 2 How much electricity does it take to make a Litre of hydrogen?
- 3 How many kw does it take to produce 1kg of hydrogen?
- 4 What does 1 Litre of hydrogen weigh?
- 5 How much energy does it take to extract 8kW of hydrogen?
- 6 How many moles of hydrogen and oxygen are in a litre of water?
How much hydrogen is produced in electrolysis of water?
Considering the industrial production of hydrogen, and using current best processes for water electrolysis (PEM or alkaline electrolysis) which have an effective electrical efficiency of 70–80\%, producing 1 kg of hydrogen (which has a specific energy of 143 MJ/kg) requires 50–55 kW⋅h (180–200 MJ) of electricity.
How much electricity does it take to make a Litre of hydrogen?
Petrol and diesel carry around 8.8 and 10 kWh/litre, respectively. Under ambient conditions, a cubic metre of hydrogen provides some 3 kWh, equivalent to 0.003 kWh per litre. Pressurised hydrogen contains about 0.5 kWh/litre at 200 bar, 1.1 kWh/litre at 500 bar and 1.4 kWh/litre at 700 bar.
How many Litres is 1kg of hydrogen?
Hydrogen Conversion Data
| Hydrogen | Weight | Liquid |
|---|---|---|
| Pounds | Liters | |
| Lb | L | |
| 1 Pound | 1 | 6.408 |
| 1 Kilogram | 2.205 | 14.128 |
How much water does it take to produce 1kg of hydrogen?
approximately 2.38 gallons
In electrolytic hydrogen production, water is used directly as a feedstock. Using water’s density and relative atomic populations, it is estimated by a mass balance that approximately 2.38 gallons of water are consumed as a feedstock to produce 1 kg of hydrogen gas, assuming no losses.
How many kw does it take to produce 1kg of hydrogen?
39 kWh
A 100\% efficient electrolyser requires 39 kWh of electricity to produce 1 kg of hydrogen.
What does 1 Litre of hydrogen weigh?
90 mg
Hydrogen is the lightest gas in the entire Universe. One liter of this gas weighs only 90 mg under normal atmospheric pressure, which means that it is 11 times lighter than the air we breathe.
How much hydrogen is produced when electrolysed from 1 kg of water?
1 litre of water weights 1 kilo and when electrolysed will produce hydrogen and oxygen as described by the following equation. 2 H2O(l) → 2 H2(g) + O2(g) in atomic weight terms 36.0012kg of water with give 4.0032kg of hydrogen and 31.998kg of oxygen.
How many grams of hydrogen are there in a liter of water?
A liter of water is about 1000 g depending on the temperature. 1000 g contains 1000 x 2 /18 = 111 g of hydrogen.
How much energy does it take to extract 8kW of hydrogen?
If the water is heated, the water molecules separate easier into Hydrogen and Oxygen Atoms. Meaning that Hydrogen contains approx. 33KW of energy per liter. And it takes approximately 1KW of electricity to extract 8KW of hydrogen from water.
How many moles of hydrogen and oxygen are in a litre of water?
18 grams of water (1 mole) can be split up to produce 1 mole of hydrogen and 0.5 moles of oxygen. Each mole of gas occupies 22.4 litres at normal temperature and pressure – a total volume of 33.6 litres made up of 22.4 litres of hydrogen and 11.2 litres of oxygen. A litre of water would produce: You do the rest of the math.