Physics for IGCSE & O level - Thermal Effects (Section 7 - No. 24)
If 1 kg of a substance has a specific heat capacity of 2000 J/kg°C, how much energy is required to raise its temperature by 10°C?
20,000 J
2,000 J
200 J
200,000 J
คำอธิบาย
Q = mcΔT; Q = 1 kg * 2000 J/kg°C * 10°C = 20000 J