BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ice floats in water
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sweating lowers body temperature.
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sugar disappears when added to water.
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it takes several weeks of warm temperatures to raise lake water several degrees.
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Detailed explanation-1: -The high specific heat of water has a great deal to do with regulating extremes in the environment. For instance, the fish in this pond are happy because the specific heat of the water in the pond means the temperature of the water will stay relatively the same from day to night.
Detailed explanation-2: -Water has the highest specific heat capacity of any liquid. Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius. For water, this amount is one calorie, or 4.184 Joules.
Detailed explanation-3: -Water has a much higher heat capacity, and specific heat, than air, meaning it takes more energy to heat water than it does to heat air. Water has a specific heat of 4.186 J/g degreesC, versus air, which has a specific heat of 1.005 J/g degreesC.
Detailed explanation-4: -Water’s specific heat power is 4.2 joules per gram per Celsius degree or 1 calory per gram per Celsius degree.