#Hey frndz plz give my answer it's very urgent
Give reasons:
( a) water is used as a cooling agent.
( b) water pipes burst in severe winter.
( c) it is difficult to cook in hills as compared to plains.
( d) ice floats on water.
( e) sea water does not freeze at 0°C.
Answers
A) That means it takes a lot of energy to heat up a certain amount of water. It takes that energy from anything hotter than itself. ... Water can absorb a lot of heat and carry it…Due to its large specific heat capacity, it is used as cooling agent.Its specific heat capacity is 4200 J/kg/K.
B) Water pipes burst because the water inside them expands is it gets close to freezing, and this causes an increase in pressure inside the pipe. When the pressure gets too high for the pipe to contain, it ruptures.
C) When that occurs, bubbles begin to form and the water boils. When atmospheric pressure is lower, such as at a higher altitude, it takes less energy to bring water to the boiling point. Less energy means less heat, which means water will boil at a lower temperature at a higher altitude.
D) Water reaches its maximum density at 4 C (40 F). As it cools further and freezes into ice, it actually becomes less dense. ... This produces a crystal lattice, which is commonly known as 'ice'. Ice floats because it is about 9% less dense than liquid water.
E) 0 degrees Celsius (32 degrees Fahrenheit) is the freezing point of freshwater, while seawater freezes at a slightly lower temperature of 28.4 degrees Fahrenheit. This is because of the salt in seawater that keeps the water from freezing. ... While pure water freezes at 0ºC, sea water does not.
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