Class 9 Exam > Class 9 Questions > What is the latent heat of fusion?a)The heat ...
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What is the latent heat of fusion?
- a)The heat energy required to change a liquid into gas
- b)The heat energy required to change a solid into liquid
- c)The heat energy required to increase the temperature of a solid
- d)The heat energy required to change a gas into liquid
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
What is the latent heat of fusion?a)The heat energy required to change...
Understanding Latent Heat of Fusion
The latent heat of fusion is a crucial concept in thermodynamics, particularly in understanding phase changes of matter. Here’s a detailed explanation of why option 'B' is correct.
Definition of Latent Heat of Fusion
- The latent heat of fusion refers specifically to the amount of heat energy required to convert a solid into a liquid at its melting point, without changing its temperature.
Phase Change Process
- When a solid absorbs heat, it eventually reaches a temperature where it starts to melt.
- At this melting point, the temperature remains constant as the solid transforms into a liquid.
- The energy added during this process does not increase the temperature but is instead used to break the bonds holding the solid structure together.
Comparison with Other Options
- Option A: Heat Energy for Liquid to Gas
This describes the latent heat of vaporization, which is different from fusion.
- Option C: Heat Energy to Increase Temperature of Solid
This refers to sensible heat, which is not related to phase changes.
- Option D: Heat Energy for Gas to Liquid
This describes the latent heat of condensation, which again is not the same as fusion.
Importance of Latent Heat of Fusion
- Understanding latent heat of fusion is essential in various applications, such as melting ice into water or in refrigeration processes.
- It helps in determining energy requirements in industrial processes and understanding climate phenomena.
In conclusion, the latent heat of fusion is fundamentally about the transition from solid to liquid, making option 'B' the correct answer.
The latent heat of fusion is a crucial concept in thermodynamics, particularly in understanding phase changes of matter. Here’s a detailed explanation of why option 'B' is correct.
Definition of Latent Heat of Fusion
- The latent heat of fusion refers specifically to the amount of heat energy required to convert a solid into a liquid at its melting point, without changing its temperature.
Phase Change Process
- When a solid absorbs heat, it eventually reaches a temperature where it starts to melt.
- At this melting point, the temperature remains constant as the solid transforms into a liquid.
- The energy added during this process does not increase the temperature but is instead used to break the bonds holding the solid structure together.
Comparison with Other Options
- Option A: Heat Energy for Liquid to Gas
This describes the latent heat of vaporization, which is different from fusion.
- Option C: Heat Energy to Increase Temperature of Solid
This refers to sensible heat, which is not related to phase changes.
- Option D: Heat Energy for Gas to Liquid
This describes the latent heat of condensation, which again is not the same as fusion.
Importance of Latent Heat of Fusion
- Understanding latent heat of fusion is essential in various applications, such as melting ice into water or in refrigeration processes.
- It helps in determining energy requirements in industrial processes and understanding climate phenomena.
In conclusion, the latent heat of fusion is fundamentally about the transition from solid to liquid, making option 'B' the correct answer.
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Community Answer
What is the latent heat of fusion?a)The heat energy required to change...
The latent heat of fusion refers to the amount of heat energy needed to convert a solid into a liquid at its melting point, without changing its temperature. Here are some key points:
- The process occurs at the melting point of the solid.
- During this change, the temperature remains constant.
- The heat energy is used to overcome the forces of attraction between the particles.
- For example, when ice melts, it absorbs heat without an increase in temperature.
- The latent heat of fusion is typically measured in joules per kilogram (J/kg).
In summary, the latent heat of fusion is essential for understanding how solids transition to liquids while maintaining a stable temperature.
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What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer?.
What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer?.
Solutions for What is the latent heat of fusion?a)The heat energy required to change a liquid into gasb)The heat energy required to change a solid into liquidc)The heat energy required to increase the temperature of a solidd)The heat energy required to change a gas into liquidCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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