You May Have Noticed That When You Get Out of a Swimming

question 30

Multiple Choice

You may have noticed that when you get out of a swimming pool and stand dripping wet in a light breeze,you feel much colder than you feel after you dry off.Why is this?

• A)The moisture on your skin has good thermal conductivity.
• B)Water has a relatively large heat capacity.
• C)This is a purely psychological effect resulting from the way in which sensory nerves in the skin are stimulated.
• D)The water on your skin is colder than the surrounding air.
• E)540 calories of heat are required to evaporate each gram of water from your skin,and most of this heat flows out of your body.

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