The mass of a copper block is 2.5 kg. Its temperature changes by 8∘C8^\circ\text{C}8∘C.
What is the change in thermal energy of the copper block?
The specific heat capacity of copper is 390 J/kg∘C390 \text{ J/kg}^\circ\text{C}390 J/kg∘C.
Use the equation:
change in thermal energy=mass×specific heat capacity×change in temperature \text{change in thermal energy} = \text{mass} \times \text{specific heat capacity} \times \text{change in temperature} change in thermal energy=mass×specific heat capacity×change in temperature975 J975 \text{ J}975 J
3120 J3120 \text{ J}3120 J
7800 J7800 \text{ J}7800 J
19 500 J19\,500 \text{ J}19500 J
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