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Consider the following statements with reference to electrolyser:
1. It is an apparatus that produces hydrogen through a chemical process by using electricity.
2. The oxygen generated in the process can be used as medical or industrial gas in some cases.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements with reference to electrolyser:1. It...
Investing in a homegrown electrolyser manufacturing infrastructure is anticipated to drive down the price of green hydrogen and enhance India’s competitive edge.
- It is an apparatus that produces hydrogen through a chemical process (electrolysis) capable of splitting water molecules into hydrogen and oxygen molecules by using electricity.
- Working:
- An electrolyser consists of a conductive electrode stack separated by a membrane to which a high voltage and current is applied.
- This causes an electric current in the water which causes it to break down into its components: hydrogen and oxygen.
- The oxygen generated in parallel is released into the atmosphere or can be stored for later use as a medical or industrial gas in some cases.
- The hydrogen is stored as a compressed gas or liquefied for use in industry or in hydrogen fuel cells, which can power transport vehicles such as trains, ships and even aircraft.
- Types of Electrolysers
- Alkaline electrolysers: Alkaline electrolysis is a mature and commercially available technology used primarily by the fertiliser and chlorine industries.
- It presently accounts for almost two-thirds of the global electrolyser capacity.
- It uses thick membranes and nickel-based electrodes.
- Proton exchange membrane (PEM) electrolysers: It operates at high pressure, due to the use of thin perfluorosulfonic acid (PFSA) membranes.
- However, the PFSA acidic environment makes it necessary to use gold and titanium plated electrodes and metals such as platinum, iridium, and ruthenium as catalysts.
- They are the most popular because they produce high-purity hydrogen and are easy to cool.
- Solid oxide electrolysis cell (SOEC) electrolysers : They utilise heat to make hydrogen from steam and are best placed where there is a heat source available (nuclear or industrial facilities).
- They operate at high temperatures (500 – 850 degrees).
- Anion exchange membrane (AEM) electrolysers: They operate at significantly lower temperatures of 50 – 60 degrees.
- They combine the less harsh conditions of alkaline electrolysers with the simplicity and high efficiency of PEM electrolysers.
Hence both statements are correct.
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Community Answer
Consider the following statements with reference to electrolyser:1. It...
Electrolyser: Producing Hydrogen
- Statement 1 is correct. An electrolyser is indeed an apparatus that produces hydrogen through a chemical process by using electricity.
- Electrolysis is the process by which an electric current is passed through a substance to cause a chemical change, resulting in the separation of the substance into its components. In the case of an electrolyser, water is typically the substance being split into hydrogen and oxygen gases.
Utilization of Oxygen
- Statement 2 is also correct. The oxygen generated as a byproduct in the electrolyser process can be used as a medical or industrial gas in certain cases.
- Oxygen is a vital component in various medical treatments, such as respiratory support for patients with breathing difficulties. Additionally, it has industrial applications, including in the production of steel, glass, and chemicals.
Conclusion
- Both statements are accurate in describing the functions and potential uses of an electrolyser.
- The electrolyser plays a crucial role in the production of hydrogen, a clean energy source, while also providing a secondary benefit of generating oxygen for medical and industrial purposes.
- Statement 1 is correct. An electrolyser is indeed an apparatus that produces hydrogen through a chemical process by using electricity.
- Electrolysis is the process by which an electric current is passed through a substance to cause a chemical change, resulting in the separation of the substance into its components. In the case of an electrolyser, water is typically the substance being split into hydrogen and oxygen gases.
Utilization of Oxygen
- Statement 2 is also correct. The oxygen generated as a byproduct in the electrolyser process can be used as a medical or industrial gas in certain cases.
- Oxygen is a vital component in various medical treatments, such as respiratory support for patients with breathing difficulties. Additionally, it has industrial applications, including in the production of steel, glass, and chemicals.
Conclusion
- Both statements are accurate in describing the functions and potential uses of an electrolyser.
- The electrolyser plays a crucial role in the production of hydrogen, a clean energy source, while also providing a secondary benefit of generating oxygen for medical and industrial purposes.
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Consider the following statements with reference to electrolyser:1. It is an apparatus that produces hydrogen through a chemical process by using electricity.2. The oxygen generated in the process can be used as medical or industrial gas in some cases.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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