Sadie is experimenting with a model steam engine. Before the 0.25 kg of water begins to boil it needs to be heated from 20°C up to 100°C. If the specific heat capacity of water is 4,180 J/kg°C, how much thermal energy is needed to get the water up to boil
energy transferred/mass x temperature change
energy transferred= 0.25x4,180x(100-20)=83,600
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