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An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent to
- a)Joule engine
- b)Stirling engine
- c)Impossible engine
- d)Carnot engine
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
An inventor states that his new engine rejects to the sink 40% of heat...
We know Carnot efficiency
But inventor claims 60% efficiency (means 40% heat rejection). It is then impossible.Most Upvoted Answer
An inventor states that his new engine rejects to the sink 40% of heat...
Explanation:
The efficiency of an engine is given by the formula:
Efficiency = 1 - (T_sink / T_source)
where T_sink is the temperature of the sink and T_source is the temperature of the source.
From the given information, we can calculate the efficiency of the engine as follows:
Efficiency = 1 - (27 / 327)
Efficiency = 0.918
This means that the engine is rejecting 8.2% of the heat absorbed from the source. However, the inventor claims that the engine is rejecting 40% of the heat absorbed. This is not possible according to the laws of thermodynamics.
Therefore, the inventor's claim of an engine that rejects 40% of the heat absorbed is impossible. The correct answer is option 'C' (Impossible engine).
Conclusion:
The efficiency of an engine depends on the temperature difference between the source and the sink. The higher the temperature difference, the higher the efficiency of the engine. However, there is a limit to the efficiency of an engine, which is given by the Carnot efficiency. No engine can have an efficiency higher than the Carnot efficiency, which depends on the temperatures of the source and the sink.
The efficiency of an engine is given by the formula:
Efficiency = 1 - (T_sink / T_source)
where T_sink is the temperature of the sink and T_source is the temperature of the source.
From the given information, we can calculate the efficiency of the engine as follows:
Efficiency = 1 - (27 / 327)
Efficiency = 0.918
This means that the engine is rejecting 8.2% of the heat absorbed from the source. However, the inventor claims that the engine is rejecting 40% of the heat absorbed. This is not possible according to the laws of thermodynamics.
Therefore, the inventor's claim of an engine that rejects 40% of the heat absorbed is impossible. The correct answer is option 'C' (Impossible engine).
Conclusion:
The efficiency of an engine depends on the temperature difference between the source and the sink. The higher the temperature difference, the higher the efficiency of the engine. However, there is a limit to the efficiency of an engine, which is given by the Carnot efficiency. No engine can have an efficiency higher than the Carnot efficiency, which depends on the temperatures of the source and the sink.
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An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer?
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An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer?.
An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer?.
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An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of An inventor states that his new engine rejects to the sink 40% of heat absorbed from the source while the source and sink temperatures are 327ºC and 27ºC respectively. His engine is therefore equivalent toa)Joule engineb)Stirling enginec)Impossible engined)Carnot engineCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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