devinpind4666 devinpind4666

04-09-2019
Physics

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Which statement about water is false?
A. Water helps to prevent dramatic changes in body temperature because it has a high heat capacity.
B. Sweating cools the body because water has a high heat of vaporization.
C. Not counting bones, water makes up about 70% of the weight of a human body.
D. During a condensation reaction, the addition of water breaks a polymer into monomers.
E. Polar molecules are attracted to water.

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ConcepcionPetillo ConcepcionPetillo

05-09-2019

Answer:

Option D.

Explanation:

The specific heat capacity of water is high, it helps in regulating body temperature.

The heat of vaporization of water is high the reason that the body cools down after sweating is due to this fact.

Water contributes to nearly 70% of the human body weight excluding bones.
During condensation reaction, monomer combines with other monomer from hydroxl group and water molecule is released and further reaction proceeds to form polymer.
Water itself is a polar molecule due to the presence of electro-negative oxygen atom it attracts positively charged hydrogen atom and can attract other polar molecules.

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