A pоt cоntаins 1.0 kg оf wаter initiаlly at 20°C. (a) How much heat energy is required to raise the temperature of the water to 100°C?(b) How much additional heat is required to convert all of the water at 100°C into steam? Use: c=4190 J/(kg⋅°C)c = 4190 , J/(kg·°C)c=4190J/(kg⋅°C) Lv=2.25×106 J/kgL_v = 2.25 × 10^6 , J/kgLv=2.25×106J/kg