Question detail

What happens to the temperature of a substance when energy is transferred to it without a change of state (Internal energy)

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. The temperature increases.
  2. B. The temperature decreases.
  3. C. The temperature remains constant.
  4. D. The temperature fluctuates.

Answer

The correct answer is The temperature increases..

Explanation

Evidence lens: Use the data, graph feature, practical observation, or particle behaviour that proves the answer. This question asks: What happens to the temperature of a substance when energy is transferred to it without a change of state (Internal energy). The correct response is The temperature increases., because changes of state are explained by particle energy and arrangement. In Internal energy, the marking point should connect directly to explain why energy transfer can change temperature without changing state. 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 249 is distinct because it uses this exact question context and the evidence lens rather than a generic particle-model sentence.

Common mistake

Energy transfer and temperature change

Students think that any energy transfer will always change the state of a system, not just its temperature.

Explain that energy transfer can increase the kinetic energy of particles, raising temperature while the system remains in the same state, and only when the energy is sufficient to overcome the latent heat does the state change.

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