Chapter 3

Last update by Smcdonald1 on 09/18/2014
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Many mammals control their body temperature by sweating. Which property of water is mostdirectly responsible for the ability of sweat to lower body temperature?

A) water's change in density when it condenses

B) water's ability to dissolve molecules in the air

C) the release of heat by the formation of hydrogen bonds

D) the absorption of heat by the breaking of hydrogen bonds

E) water's high surface tension

Answer:
D) the absorption of heat by the breaking of hydrogen bonds

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  • feldman2009
    Answered in Chapter 3

    A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-Lcontainer of cold water, what would be the approximate increase in the temperature of the water?

    (Note: A liter of cold water weighs about 1 kg.)

    A) 50°C

    B) 5°C

    C) 10°C

    D) 100°C

    E) 1°C

    C) 10°C
Chapter 3
Chapter 3
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