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The number of oxygen atoms contained in 0.2mol oxygen gas and () mol water is equal
0.2Mol oxygen gas contains 0.2*2=0.4mol oxygen atom
Therefore the amount of water =0.4 ml
That is, the number of oxygen atoms contained in 0.2mol oxygen gas and 0.4mol water is equal
0.2Mol oxygen gas contains 0.2*2=0.4mol oxygen atom
Therefore the amount of water =0.4 ml
That is, the number of oxygen atoms contained in 0.2 mol oxygen gas and 0.4 mol water is equal
How much joules of electricity is needed to break down 1 mol of water into hydrogen and oxygen in an electrolytic water experiment?
The experimental value is about:400 kWh electricity can electrolyze 1 cubic meter of hydrogen (standard case)
1 KWh =3600000 Joules
1 M3=1000 l =44.64 mol (standard gas)
3600000*400/44.64=32258064.52J power required to decompose 1 mol of water into hydrogen and oxygen
RELATED INFORMATIONS
- 1. To obtain 1 mol of hydrogen from electrolyzed water, how much g of water is needed? How many grams of oxygen are produced at the same time To obtain 1 mol of hydrogen gas from electrolyzed water, ask what mass of electrolyzed water is required? How many grams of oxygen are produced at the same time
- 2. Is the quality of hydrogen and oxygen produced by electrolysis of water the same as that of the original water
- 3. Why, from the point of view of energy conservation, is it not advisable to use hydrogen produced by electrolytic water as a conventional energy source? Is it because you need a lot of power?
- 4. Suppose 1,8 grams of water is electrolyzed and the mass of oxygen and hydrogen produced is calculated from the chemical equation for electrolyzed water.
- 5. When the water is electrolyzed, the mass ratio of hydrogen to oxygen always 1: When the water is electrolyzed, the mass ratio of hydrogen to oxygen is always 1:
- 6. What is the potential of solar energy as a clean energy source?
- 7. Now it's said that hydrogen is the cleanest energy source, and electrolysis of water can also get hydrogen, so why no one does that
- 8. What is electrolyzed water? What can be converted from electricity? What's electrolyzed water? What's the power?
- 9. Electrolytic water consumes energy, and hydrogen combustion releases energy. How do you understand the energy changes in chemical change? Why "21st century is hydrogen energy century "? I don't like answers copied from somewhere else.
- 10. Is there an arrow behind the chemical formula for hydrogen and oxygen produced in the chemical equation for electrolytic water?
- 11. Why the heat released from the complete combustion of 2 mol hydrogen gas into water vapor is less than that less than 572 J/mol Why the heat released from the complete combustion of 2 mol hydrogen gas is less than that of water, less than 572 J/mol
- 12. O2 is the amount of oxygen, and H2 is the amount of hydrogen. The formula is,2H2+O2=2H2O, and the ratio of the amount of oxygen and the amount of hydrogen is determined
- 13. Electrolytic water, electric energy all into chemical energy Such as title
- 14. When water electrolysis produces hydrogen and oxygen, does brine electrolysis produce hydrogen and oxygen? What role does salt play in this process? Water electrolysis produces hydrogen and oxygen, so does brine electrolysis produce hydrogen and oxygen? What role does salt play in this process?
- 15. Water electrolysis produces oxygen and hydrogen, indicating that water contains both oxygen and hydrogen. Why? Water electrolyzes the formation of oxygen and hydrogen, indicating that water contains oxygen and hydrogen. Why?
- 16. Water contains ___ molecules, hydrogen contains ___ molecules, and oxygen contains ___ molecules. Then the molecular change in the water electrolysis process is _____ Water contains ___ molecules, hydrogen contains ___ molecules, and oxygen contains ___ molecules. Then, the molecular change during water electrolysis is _____
- 17. Is it true that water electrolysis produces hydrogen and oxygen, and that water contains oxygen and hydrogen molecules? Why,
- 18. How can water be decomposed into hydrogen and oxygen
- 19. Is there a way to quickly break water down into hydrogen and oxygen No electrolysis
- 20. Advantages of Electrolytic Water (Water_Electric Oxygen+Hydrogen) for Oxygen Production Compare with: 1. Heating potassium permanganate 2. Hydrogen peroxide reacts with carbon dioxide to form sodium carbonate and oxygen.