Question detail

If 3 kg of water is heated and absorbs 6300 J of energy, what is the specific heat capacity of the water if its temperature increases by 10 °C (Temperature changes in a system and specific heat capacity)

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

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Question

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Topic

Internal energy and energy transfers

Question

If 3 kg of water is heated and absorbs 6300 J of energy, what is the specific heat capacity of the water if its temperature increases by 10 °C (Temperature changes in a system and specific heat capacity)

Answer

The specific heat capacity of the water is 210 J/kg°C.

Explanation

Comparison lens: State both sides of the comparison so the contrast is explicit rather than implied. This question asks: If 3 kg of water is heated and absorbs 6300 J of energy, what is the specific heat capacity of the water if its temperature increases by 10 °C (Temperature changes in a system and specific heat capacity). The correct response is The specific heat capacity of the water is 210 J/kg°C., because specific heat capacity links energy, mass, material and temperature change. In Temperature changes in a system and specific heat capacity, the marking point should connect directly to rearrange the specific heat capacity equation for any required variable. 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 329 is distinct because it uses this exact question context and the comparison lens rather than a generic particle-model sentence.

Common mistake

Rearranging Specific Heat Capacity Equation

Students often confuse the variables when rearranging the specific heat capacity equation, leading to incorrect calculations.

To fix this, practice identifying each variable in the equation E = m x c x delta theta and ensure you understand how to isolate each variable correctly.

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If 3 kg of water is heated and absorbs 6300 J of energy, what | AQA Physics | ExamCompanion