How much heat h1 is transferred to the skin by 25.0 g of steam onto the skin? the latent heat of vaporization for steam is l=2.256×106j/kg.express the heat transferred, in joules, to three significant figures?

The heat transferred by the steam to the skin is given by

where
m is the mass of the steam
is the latent heat of vaporization.

In our problem, the mass of the steam is (converting into kg)

while the latent heat of vaporization of the steam is

Substituting into the previous formula, we find the heat transferred to the skin:

b.Wattage

Explanation:

Out of all the factors that are important for a power supply the wattage and quality of the supplier is are the most important. It is because if the wattage of the power supply is low or not enough it can end up frying several components of the PC. Suppose your card with all other components consumes 430W of power and you hook up the PC with a 300W power supply. The PC components strive for power and fry themselves up completely. The 80 plus Gold Ratings and other things are just for publicity. In facts there are power supplies of less wattage are available with 80 plus rating.