You can put your hand in a 400° F oven briefly without getting burned. However, even a second or two of contact with 212° F steam can be quite painful. The steam delivers heat much faster to your hand because steam
A. undergoes much more rapid convection than air.
B. condenses into water and deposits its heat of vaporization into your hand.
C. is a gas with a much higher thermal conductivity than air.
D. is actually a liquid with a high thermal conductivity. It is composed of countless tiny droplets suspended in the air.
Answer:B
You can put your hand in a 400° F oven briefly without getting burned. However, even a second or two of contact with 212° F steam can be quite painful. The steam delivers heat much faster to your hand because steam
A. undergoes much more rapid convection than air. B. condenses into water and deposits its heat of vaporization into your hand. C. is a gas with a much higher thermal conductivity than air. D. is actually a liquid with a high thermal conductivity. It is composed of countless tiny droplets suspended in the air.