Calculate the amount of heat (kcal) released when 50.0g of steam at 100*c hits the skin, condenses, and cools to a body temperature of 37*c

As the steam touches the skin, it undergoes a phase change and releases latent heat due to the phase change. As it reaches equilibrium, it releases sensible heat. We calculate as follows:

Q = latent heat + sensible Heat

Q = 2.26 kJ / g (50.0 g) + 50.0 g (4.18 J / g C) (37 C - 100 C) (1 kJ / 1000 J)

Q = 99.833 kJ