If 3000 J of energy is used to heat 1.5 kg of water, causing a temperature increase of 10 °C, calculate the specific heat capacity of the water (Temperature changes in a system and specific heat capacity)

200 J/kg°C

Unit lens: Check the units before giving the final statement so the physics quantity is not swapped. This question asks: If 3000 J of energy is used to heat 1.5 kg of water, causing a temperature increase of 10 °C, calculate the specific heat capacity of the water (Temperature changes in a system and specific heat capacity). The correct response is 200 J/kg°C, 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 calculate specific heat capacity when energy change, mass and temperature change are known. 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 313 is distinct because it uses this exact question context and the unit lens rather than a generic particle-model sentence.