How much heat is required to convert 10.0 g of ice at -7.00 ∘C to steam at 100.0∘C? Express your answer in Joules and kilocalories.

The burner on an electric stove has a power output of 2.0 kWkW. A 780 gg stainless steel tea kettle is filled with 20∘C∘C water and placed on the already hot burner. f it takes 3.3 minmin for the water to reach a boil, what volume of water, in cm3cm3, was in the kettle? Stainless steel is mostly iron, so you can assume its specific heat is that of iron. Express your answer using two significant figures.

Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. How much energy is required to raise the temperature of that volume of water from 18.0°C to 21.0°C? How many years would it take to supply this amount of energy by using the 1,400-MW exhaust energy of an electric power plant?

What minimum heat is needed to bring 100 g of water at 40 ∘C to the boiling point and completely boil it away? The specific heat of water is 4190 J/(kg⋅K) and its heat of vaporization is 22.6××1055 J/kg. Express your answer with the appropriate units.