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Which one of the following statements is correct?
- a)Any energy transfer that does not involve temperature difference in some way is not heat
- b)Any energy transfer always requires a temperature difference
- c)On heating the length and volume of the object remain exactly thesame
- d)Whenever there is a temperature difference, heat is the only way of energy transfer
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Which one of the following statements is correct?a)Any energy transfer...
Explanation:
Heat is defined as the transfer of thermal energy between two systems at different temperatures. However, there are other forms of energy transfer that do not involve temperature difference, such as work and radiation. Therefore, statement (a) is correct.
Why option A is correct:
Heat is a form of energy transfer that occurs due to a temperature difference between two systems. When two systems are at different temperatures, heat flows from the hotter system to the cooler system until they reach thermal equilibrium. However, there are other forms of energy transfer that do not involve temperature difference. These include:
1. Work: Work is the transfer of energy due to the application of a force over a distance. For example, when you lift a book, you are doing work on it by transferring energy from your muscles to the book.
2. Radiation: Radiation is the transfer of energy through electromagnetic waves. For example, the sun transfers energy to the Earth through radiation.
Therefore, any energy transfer that does not involve temperature difference in some way is not heat. Statement (a) is correct.
Why other options are incorrect:
Option (b) is incorrect because there are other forms of energy transfer that do not require a temperature difference, such as work and radiation.
Option (c) is incorrect because on heating an object, its length and volume may change due to thermal expansion.
Option (d) is incorrect because there are other forms of energy transfer besides heat, such as work and radiation.
Heat is defined as the transfer of thermal energy between two systems at different temperatures. However, there are other forms of energy transfer that do not involve temperature difference, such as work and radiation. Therefore, statement (a) is correct.
Why option A is correct:
Heat is a form of energy transfer that occurs due to a temperature difference between two systems. When two systems are at different temperatures, heat flows from the hotter system to the cooler system until they reach thermal equilibrium. However, there are other forms of energy transfer that do not involve temperature difference. These include:
1. Work: Work is the transfer of energy due to the application of a force over a distance. For example, when you lift a book, you are doing work on it by transferring energy from your muscles to the book.
2. Radiation: Radiation is the transfer of energy through electromagnetic waves. For example, the sun transfers energy to the Earth through radiation.
Therefore, any energy transfer that does not involve temperature difference in some way is not heat. Statement (a) is correct.
Why other options are incorrect:
Option (b) is incorrect because there are other forms of energy transfer that do not require a temperature difference, such as work and radiation.
Option (c) is incorrect because on heating an object, its length and volume may change due to thermal expansion.
Option (d) is incorrect because there are other forms of energy transfer besides heat, such as work and radiation.
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Community Answer
Which one of the following statements is correct?a)Any energy transfer...
The movement of energy from one to another is called energy transfer.
and heat transfer mainly takes place due to temperature difference.
and heat transfer mainly takes place due to temperature difference.
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Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer?
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Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer?.
Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is correct?a)Any energy transfer that does not involve temperature difference in some way is not heatb)Any energy transfer always requires a temperature differencec)On heating the length and volume of the object remain exactly thesamed)Whenever there is a temperature difference, heat is the only way of energy transferCorrect answer is option 'A'. Can you explain this answer?.
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