Physics for IGCSE & O level - Thermal Effects (Section 7 - No. 23)
If 2 kg of water needs to be raised by 50°C, and the specific heat capacity of water is 4200 J/kg°C, how much energy is required?
420000 J
4200 J
84000 J
210000 J
Објашњење
Energy transferred = 2 * 4200 * 50 = 420000 J