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Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.
Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Assertion (A): The internal energy depends on the internal state of a ...
The internal energy depends only upon the initial and final states of the system. Internal energy of a substance does not include any energy that it may possess as a
result of its macroscopic position or movement. That so why in SFEE v2/2 and gz is there.
result of its macroscopic position or movement. That so why in SFEE v2/2 and gz is there.
If internal energy include position or movement then why this v2/2 and gz terms is there.
Bur Remember:
Microscopic view of a gas is a collection of particles in random motion. Energy of aparticle consists of translational energy, rotational energy, vibrational energyand specific electronic energy. All these energies summed over all the particles of the
gas, form the specific internal energy, e , of the gas.
gas, form the specific internal energy, e , of the gas.
Most Upvoted Answer
Assertion (A): The internal energy depends on the internal state of a ...
Assertion (A) Explained
The internal energy of a body indeed depends on its internal state. This is encapsulated by the following key points:
- Temperature: The average kinetic energy of particles increases with temperature, which directly affects internal energy.
- Pressure: Changes in pressure can influence the volume and therefore the internal interactions among particles, affecting internal energy.
- Composition: Different substances have varying types and amounts of molecular interactions, which directly relate to their internal energy.
Reason (R) Explained
The reason provided states that internal energy does not include energy from macroscopic position or movement. This is a crucial distinction:
- Internal Energy: It is a measure of the energy contained within a system due to molecular motion, bonds, and interactions.
- Exclusion of Macroscopic Energy: The energy associated with the position (potential energy due to gravitational or other fields) and movement (kinetic energy of the whole system) is classified separately from internal energy, which focuses solely on microscopic aspects.
Relationship Between A and R
While both assertion (A) and reason (R) are true, R does not correctly explain A:
- Independence: The nature of internal energy (A) encompasses more than just the exclusion of macroscopic energy (R). A explains the dependence on microscopic parameters, while R describes what is not included in internal energy.
In conclusion, the correct answer is indeed option 'A', as both statements are true, but R does not serve as the correct explanation for A.
The internal energy of a body indeed depends on its internal state. This is encapsulated by the following key points:
- Temperature: The average kinetic energy of particles increases with temperature, which directly affects internal energy.
- Pressure: Changes in pressure can influence the volume and therefore the internal interactions among particles, affecting internal energy.
- Composition: Different substances have varying types and amounts of molecular interactions, which directly relate to their internal energy.
Reason (R) Explained
The reason provided states that internal energy does not include energy from macroscopic position or movement. This is a crucial distinction:
- Internal Energy: It is a measure of the energy contained within a system due to molecular motion, bonds, and interactions.
- Exclusion of Macroscopic Energy: The energy associated with the position (potential energy due to gravitational or other fields) and movement (kinetic energy of the whole system) is classified separately from internal energy, which focuses solely on microscopic aspects.
Relationship Between A and R
While both assertion (A) and reason (R) are true, R does not correctly explain A:
- Independence: The nature of internal energy (A) encompasses more than just the exclusion of macroscopic energy (R). A explains the dependence on microscopic parameters, while R describes what is not included in internal energy.
In conclusion, the correct answer is indeed option 'A', as both statements are true, but R does not serve as the correct explanation for A.
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Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?
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Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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Here you can find the meaning of Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
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ample number of questions to practice Assertion (A): The internal energy depends on the internal state of a body, as determined by its temperature, pressure and composition.Reason (R): Internal energy of a substance does not include any energy that it may possess as a result of its macroscopic position or movement.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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