Which is the Purest Substance: Rain Water or Heavy Water

In summary, the answer to which one is the most pure substance between rain water and heavy water is dependent on the definitions and sources used. Both substances can be impure, with rain water containing compounds such as NOx's and CO2 and heavy water containing varying amounts of D and potential contamination. Without clear definitions and context, the question is meaningless and cannot be answered accurately.
  • #1
qazi75
13
0
Which one is the most pure substance?Rain water or Heavy water
 
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  • #2
Explain what you mean by:

1. Pure substance.
2. Rain water.
3. Heavy water.

Depending on the definitions and/or sources there is enough ambiguity in the question to make it meaningless.
 
  • #3
Rain contains other compunds, including (but not limited to) NOx's and CO2.
Heavy water contains D instead of H...

If by pure substance you mean H2O, then both can be impure dependant upon the amounts of D or Co2 etc in solution.
 
  • #4
I mean in comparison of heavy water and rain water,which one is most pure.
 
  • #5
Seems like you still don't understand why the question doesn't make much sense.

Heavy water is D2O, but its purity is not something defined by the name. It can contain more or less of the normal hydrogen, it can be - depending on the source - contaminated with other things.

Stating "rain water" doesn't tell much about contamination. When the rain starts to fall after several weeks in the large city full of heavy industry it is much more contaminated than the rain falling for long in a place far from the sources of contamination (industry, volcanoes, deserts being source of dust and so on).

Basically you are trying to compare things not knowing what they are. It won't work.
 

Related to Which is the Purest Substance: Rain Water or Heavy Water

1. What is the difference between rain water and heavy water?

Rain water is the naturally occurring precipitation that falls from the sky and is composed of regular water molecules, which are made of two hydrogen atoms and one oxygen atom. Heavy water, on the other hand, is a form of water that contains a higher concentration of the hydrogen isotope deuterium, resulting in water molecules with two deuterium atoms and one oxygen atom.

2. Which one is considered the purest substance?

Technically, both rain water and heavy water can be considered pure substances as they are made of only one type of molecule. However, if we are talking about purity in terms of chemical composition, heavy water is considered purer due to its higher concentration of deuterium.

3. Is heavy water safe for consumption?

Yes, heavy water is safe for consumption in small amounts. It is often used in medical and scientific research, and can also be found naturally in some foods and beverages. However, consuming large quantities of heavy water can be harmful as it can interfere with the body's natural processes.

4. How is heavy water produced?

Heavy water is typically produced through a process called electrolysis, in which water molecules are split into their component parts. The heavier deuterium atoms are then separated and collected, resulting in heavy water. It can also be produced through other methods such as distillation or chemical exchange.

5. Can heavy water be converted back to regular water?

Yes, heavy water can be converted back to regular water through a process called distillation. This involves boiling the heavy water and collecting the evaporated steam, which will have a lower concentration of deuterium. However, this process is costly and not commonly used, as heavy water is often needed for specific purposes where its unique properties are necessary.

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