What is the total heat required to convert 3 kg of ice at -12°C in a calorimeter to steam at 100°C at atmospheric pressure, given specific heat capacity of ice = 2100 J kg–1 K–1, specific heat capacity of water = 4186 J ~k g ⁻¹ ~ K ⁻¹ , latent heat of fusion of ice = 3.35 × 10 ⁵ J ~k g ⁻¹ , and latent heat of steam = 2.256 × 10 ⁶ J ~k g ⁻¹ ?