Question detail

Which of the following statements correctly distinguishes between specific latent heat of fusion and specific latent heat of vaporisation?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Internal energy and energy transfers

Question

  1. A. Latent heat of fusion is for melting, while latent heat of vaporisation is for boiling.
  2. B. Latent heat of fusion is for boiling, while latent heat of vaporisation is for melting.
  3. C. Both refer to the same process of changing state.
  4. D. Latent heat of fusion occurs at higher temperatures than latent heat of vaporisation.

Answer

The correct answer is Latent heat of fusion is for melting, while latent heat of vaporisation is for boiling..

Explanation

Unit lens: Check the units before giving the final statement so the physics quantity is not swapped. This question asks: Which of the following statements correctly distinguishes between specific latent heat of fusion and specific latent heat of vaporisation. The correct response is Latent heat of fusion is for melting, while latent heat of vaporisation is for boiling., because specific latent heat concerns energy transferred during a state change with no temperature rise. In Changes of state and specific latent heat, the marking point should connect directly to apply MS 3b and MS 3c skills when rearranging and calculating with the specific latent heat equation. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Internal energy and energy transfers, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 445 is distinct because it uses this exact question context and the unit lens rather than a generic particle-model sentence.

Common mistake

Confusing Specific Latent Heat with Temperature Change

Students often confuse specific latent heat with temperature change, thinking that energy transferred during a state change affects temperature.

Remember that specific latent heat refers to the energy needed to change the state of a substance without changing its temperature. Focus on how energy affects particle arrangement rather than kinetic energy.

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Which of the following statements correctly distinguishes | AQA Physics | ExamCompanion