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A water heater can generate 32000 kJ/h. How much water can it heat from \(12{\rm{\circ C}}\)to \(14{\rm{\circ C}}\)

Explain why burns caused by steam at 100°C on the skin are often more severe than burns caused by water at 100°C.

Explain why water cools (its temperature drops) when it evaporates, using the concepts of latent heat and internal energy.

Will pasta cook faster if the water boils more vigorously? Explain.