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With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC)
Which of the statements given above is/are correct?
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC)
Which of the statements given above is/are correct?
[2015]
- a)1 only
- b)2 and 3 Only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
With reference to fuel cells in which hydrogen-rich fuel and oxygen ar...
Fuel Cells and their Characteristics
Fuel cells are devices that convert the chemical energy of hydrogen-rich fuels and oxygen into electrical energy and heat. They work like batteries, but they don't need to be recharged as long as fuel and oxygen are supplied. The three statements given in the question are as follows:
Statement 1: If pure hydrogen is used as fuel, the fuel cell emits heat and water as by-products.
This statement is correct. Fuel cells produce electricity through the electrochemical reaction between hydrogen and oxygen, which produces water and heat as by-products. The chemical reaction can be represented as follows:
2H2 + O2 → 2H2O + heat + electrical energy
Statement 2: Fuel cells can be used for powering buildings and not for small devices like laptop computers.
This statement is incorrect. Fuel cells can be used for various applications, including powering buildings, vehicles, and small devices like laptop computers. Fuel cells are highly efficient, reliable, and can operate quietly and cleanly. They are being used for backup power in hospitals, data centers, and telecommunication towers, and for powering buses and cars.
Statement 3: Fuel cells produce electricity in the form of Alternating Current (AC).
This statement is incorrect. Fuel cells produce direct current (DC) electricity, which needs to be converted into AC for most electrical applications. The DC electricity produced by fuel cells can be stored in batteries or used to power DC devices directly.
Conclusion
In conclusion, statement 1 is correct, statement 2 is incorrect, and statement 3 is incorrect. Fuel cells are a promising technology for generating clean and efficient energy, and they are being developed for various applications in the future.
Fuel cells are devices that convert the chemical energy of hydrogen-rich fuels and oxygen into electrical energy and heat. They work like batteries, but they don't need to be recharged as long as fuel and oxygen are supplied. The three statements given in the question are as follows:
Statement 1: If pure hydrogen is used as fuel, the fuel cell emits heat and water as by-products.
This statement is correct. Fuel cells produce electricity through the electrochemical reaction between hydrogen and oxygen, which produces water and heat as by-products. The chemical reaction can be represented as follows:
2H2 + O2 → 2H2O + heat + electrical energy
Statement 2: Fuel cells can be used for powering buildings and not for small devices like laptop computers.
This statement is incorrect. Fuel cells can be used for various applications, including powering buildings, vehicles, and small devices like laptop computers. Fuel cells are highly efficient, reliable, and can operate quietly and cleanly. They are being used for backup power in hospitals, data centers, and telecommunication towers, and for powering buses and cars.
Statement 3: Fuel cells produce electricity in the form of Alternating Current (AC).
This statement is incorrect. Fuel cells produce direct current (DC) electricity, which needs to be converted into AC for most electrical applications. The DC electricity produced by fuel cells can be stored in batteries or used to power DC devices directly.
Conclusion
In conclusion, statement 1 is correct, statement 2 is incorrect, and statement 3 is incorrect. Fuel cells are a promising technology for generating clean and efficient energy, and they are being developed for various applications in the future.
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Community Answer
With reference to fuel cells in which hydrogen-rich fuel and oxygen ar...
A fuel cell is a device that converts chemical energy into electrical energy by using hydrogen gas and oxygen gas. The products of this reaction are water electricity and heat.
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With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?
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With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
Solutions for With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?, a detailed solution for With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by- products.2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.3. Fuel cells produce electricity in the form of Alternating Current (AC)Which of the statements given above is/are correct?[2015]a)1 onlyb)2 and 3 Onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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