WAEC - Physics (1992 - No. 17)
Which of the following best explains why a person suffers a more severe burn when his skin is exposed to steam than when boiling water pours on his skin?
Steam is at a higher temperature than boiling water
Steam possesses greater heat energy per unit mass than boiling water
Steam spreads more easily over a wider area of the skin man boiling water
Steam penetrates more deeply into the skin than boiling water
the specific latent heat of vaporization is released in changing from boiling water to steam