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The second law of thermodynamics says that in a cyclic process :
- a)work cannot be converted into heat
- b)heat cannot be converted into work
- c)work cannot be completely converted into heat
- d)heat cannot be completely converted into work
Correct answer is option 'D'. Can you explain this answer?
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The second law of thermodynamics says that in a cyclic process :a)work...
D option . as according to carnot no engine can completely convert heat to work.
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The second law of thermodynamics says that in a cyclic process :a)work...
The second law of thermodynamics states that heat cannot be completely converted into work in a cyclic process. This is known as the Kelvin-Planck statement of the second law.
- Explanation:
In any cyclic process, some amount of heat will always be lost to the surroundings, making it impossible to convert all the heat into work. This is because of the concept of entropy, which is a measure of the disorder or randomness in a system. As heat is transferred between a system and its surroundings, the entropy of the system and surroundings increases, leading to a decrease in the available energy for conversion into work.
- Implications:
This limitation has practical implications in the design of heat engines, where the efficiency is limited by the second law of thermodynamics. It also explains why perpetual motion machines, which violate this law by claiming to produce work without any input of energy, are not possible.
- Significance:
Understanding the limitations imposed by the second law of thermodynamics is crucial in various fields such as engineering, physics, and chemistry. It helps in predicting the behavior of systems and designing efficient processes that comply with the laws of thermodynamics.
In conclusion, the second law of thermodynamics prohibits the complete conversion of heat into work in a cyclic process, highlighting the importance of energy conservation and the concept of entropy.
- Explanation:
In any cyclic process, some amount of heat will always be lost to the surroundings, making it impossible to convert all the heat into work. This is because of the concept of entropy, which is a measure of the disorder or randomness in a system. As heat is transferred between a system and its surroundings, the entropy of the system and surroundings increases, leading to a decrease in the available energy for conversion into work.
- Implications:
This limitation has practical implications in the design of heat engines, where the efficiency is limited by the second law of thermodynamics. It also explains why perpetual motion machines, which violate this law by claiming to produce work without any input of energy, are not possible.
- Significance:
Understanding the limitations imposed by the second law of thermodynamics is crucial in various fields such as engineering, physics, and chemistry. It helps in predicting the behavior of systems and designing efficient processes that comply with the laws of thermodynamics.
In conclusion, the second law of thermodynamics prohibits the complete conversion of heat into work in a cyclic process, highlighting the importance of energy conservation and the concept of entropy.
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The second law of thermodynamics says that in a cyclic process :a)work cannot be converted into heatb)heat cannot be converted into workc)work cannot be completely converted into heatd)heat cannot be completely converted into workCorrect answer is option 'D'. Can you explain this answer?
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The second law of thermodynamics says that in a cyclic process :a)work cannot be converted into heatb)heat cannot be converted into workc)work cannot be completely converted into heatd)heat cannot be completely converted into workCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The second law of thermodynamics says that in a cyclic process :a)work cannot be converted into heatb)heat cannot be converted into workc)work cannot be completely converted into heatd)heat cannot be completely converted into workCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The second law of thermodynamics says that in a cyclic process :a)work cannot be converted into heatb)heat cannot be converted into workc)work cannot be completely converted into heatd)heat cannot be completely converted into workCorrect answer is option 'D'. Can you explain this answer?.
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