Question detail
What is the relationship between internal energy and particle arrangement (Temperature changes in a system and specific heat capacity)
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
- A. Changing particle arrangement can change the potential energy of particles
- B. Internal energy is independent of particle arrangement
- C. Particle arrangement only affects kinetic energy, not internal energy
- D. Internal energy decreases with increasing particle arrangement
Answer
The correct answer is Changing particle arrangement can change the potential energy of particles.
Explanation
Evidence lens: Use the data, graph feature, practical observation, or particle behaviour that proves the answer. This question asks: What is the relationship between internal energy and particle arrangement (Temperature changes in a system and specific heat capacity). The correct response is Changing particle arrangement can change the potential energy of particles, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Temperature changes in a system and specific heat capacity, the marking point should connect directly to recall and apply the equation change in thermal energy = mass x specific heat capacity x temperature change. 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 285 is distinct because it uses this exact question context and the evidence lens rather than a generic particle-model sentence.
Common mistake
Misunderstanding Thermal Energy Change
Students often confuse the equation for thermal energy change, mistakenly using mass or specific heat capacity incorrectly.
Ensure to remember that the equation is ΔE = m x c x Δθ, where ΔE is the change in thermal energy, m is mass, c is specific heat capacity, and Δθ is the temperature change.
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