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How much water does it take to make a kg of hydrogen?
about 2.4 gallons
Based on the atomic properties of water, 1 kg of hydrogen gas requires about 2.4 gallons of water as feedstock. In one year, 60 billion kilograms of hydrogen would require 143 billion gallons of fresh, distilled water.
Does hydrogen produce water when burned?
In a flame of pure hydrogen gas, burning in air, the hydrogen (H2) reacts with oxygen (O2) to form water (H2O) and releases energy.
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 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 does it cost to produce 1 kg of hydrogen?
Overall, this data shows that hydrogen can be produced today within a cost range of ~$2.50 – $6.80/kg from a mix of renewable and grid feedstocks. This is in good alignment with the DOE analysis, which shows that hydrogen can be produced via PEM electrolysis at a cost of ~$4 to $6/kg for specific conditions.
How much energy does it take to produce 1kg of hydrogen?
State of the art hydrogen liquefaction technology has a power consumption of 12 kWh/kg. This is equivalent to 36% of the useable energy contained in 1 kg of hydrogen (33.33 kWh/kg, see above).
What is produced when you burn hydrogen?
The most common substance resulting from hydrogen combustion is water. The hydrogen atoms mix with the oxygen atoms and create the essential H20 formula, resulting in a light residue of water that may escape as water vapor or condense on surfaces near where the hydrogen is burned.
What happens when hydrogen reacts with fire?
Hydrogen is a colourless gas, H2, that is lighter than air. Mixtures of hydrogen gas and air do not react unless ignited with a flame or spark, in which case the result is a fire or explosion with a characteristic reddish flame whose only products are water, H2O.
Does electrolysis produce pure hydrogen?
Among many hydrogen production methods, eco-friendly and high purity of hydrogen can be obtained by water electrolysis. Moreover, the produced hydrogen (H2) and oxygen (O2) directly used for fuel cell and industrial applications.
How does the electrolysis of water produce hydrogen gas?
Solid Oxide Electrolyzers Steam at the cathode combines with electrons from the external circuit to form hydrogen gas and negatively charged oxygen ions. The oxygen ions pass through the solid ceramic membrane and react at the anode to form oxygen gas and generate electrons for the external circuit.
How much hydrogen gas is released from one liter of water?
At the temperature, the density of water is 0.9998 g/ml. Thus, mass of 1 litre water at that temperature will be: 0.9998 X 1000 g = 999.8 g Thus, 1 mole of water will release 1 mole of hydrogen. Easy-peasy, lemon-squeezy! Then that 1 litre or 1 kg of water will yield ~112 grams of hydrogen and ~888 grams of oxygen
How many liters of HHO gas are in one litre of H2O?
Therefore 1 litre of H2O produces 111 moles of H, and 55.5 moles of O. this is an easy one…1860 liters of hho gas produced from one liter of water…each molecule of water has two hydrogen atoms and one oxygen atom… 1240 liters of hydrogen and 620 liters of oxygen from each liter of water equals 1860 liters of hho gas.
How many liters of oxygen does one liter of water produce?
One liter of water will thus produce 111/0.0899 =1235 liters of hydrogen and 888.81/1.429 = 622 liters of oxygen. Note that according to Avogadro’s law, the volume of hydrogen is about twice that of oxygen, because 1 mol of water produces 1 mol of hydrogen and 1/2 mol of oxygen.
How much mass is in a gallon of water?
The density of water is 1g/ (cm 3) so in 1 gallon of water ( about 3.785 Liters or 3785 cm 3) the mass of the water is, 3785g. 1 mole of 6.02×10 23 molecules of water is equal has the mass in grams equal to the molecular weight or 18 grams per mole.