Water

Important Properties of Water

Water has various important properties that are essential to keep the planet earth lively. If there is no water then earth would become a dead planet with no living species. Here are some known qualities of water.

Polarity:

When the slightly positively charged hydrogen atoms bond with negatively charged oxygen, they form H-bridges or hydrogen bonds.

Amortization:

Absorbs the kinetic energy around the organs in cases of bodily injuries.

Density:

It has density of 1 g/cu.cm, 1 g/ml at 4 º C. We use the density of water as a reference point.

Heat capacity:

This property helps to maintain body temperature because the water can absorb and release a large amount of heat without undergoing a great change in temperature.

Universal solvent:

Most of the organic and inorganic molecules can dissolve in water.

Heavy water:

There are two natural isotopes of hydrogen: deuterium and tritium. In addition to containing a proton, the nucleus of deuterium also contains a neutron. It has an atomic weight of 2. Tritium on the other hand is unstable and radioactive element whose nucleus has one proton and two neutrons. It has an atomic weight of 3.
In a given volume of hydrogen, there is approximately 0.02% of deuterium. These deuterium atoms can combine with oxygen to produce heavy water, whose density is almost 11% higher than that of ordinary water. Heavy water boils at 101.42 ° C instead of 100 ° C and its freezing point is 3.81 ° C instead of 0 ° C.

Heavy water is used as a “moderator” in certain types of nuclear reactors. A moderator is used to slow down the neutrons released by fission, which promotes the chain reaction. You can use plain water, but heavy water has the advantage of less neutron capture. Some models of reactors use graphite as the moderator instead.

Can you drink heavy water? No problem! Moreover, we do drink it every day without realizing it, since the deuterium is present in nature (about 0.02% by volume of hydrogen).

We could even drink 100% pure heavy water without any risk (or benefits either!). But as heavy water is extremely expensive to produce, it may be rare for someone to pour a glass of heavy water when you ask for water.

Qualities of polluted water and how to identify them

We all know how to identify pure or drinkable water, with its odor, appearance, or taste we could easily say whether if it is safe to drink it or not. However, sometimes it may be hard to just rely on these physical properties to make a choice.

Here are some extra tips that would help you identify polluted water

  • The pH level of clean water should be between six and eight at room temperature of 25 degrees Celsius.
  • The conductivity of pure water is around 1000mS.
  • When you touch fresh water it does not leave any residue on your fingers where as if you touch polluted water it is very likely that it may leave residue.

Some facts related to the dangers of polluted water

  • Studies show that one in five Americans drink water from the tap that is polluted with feces, radiation and other contaminants. There are around 1,000 deaths every year due to this and over 400,000 waterborne illness cases are all attributed to polluted water
  • Two years ago, over 100 people were killed in Milwaukee by a parasite called cryptosporidium that was found in drinking water system. This water system serves over 45 million people in that area.
  • Studies also show that communities with drinking water contaminated by chemicals are being attacked by strange illnesses recently.

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