answersLogoWhite

0

Does boiling water have oxygen

Updated: 8/11/2023
User Avatar

Wiki User

15y ago

Best Answer

There are two different ways to ask this question, each dealing with two different ways that water can "have" oxygen in it. It is important to understand the question being asked because each interpretation has a different answer. 1. Does boiling water contain dissolved oxygen? 2. Does water contain oxygen? The answers: 1. No, boiling water does not contain dissolved oxygen. The hotter a substance is, the more energy the molecules have. There are gases such as carbon dioxide (CO2) and oxygen (O2) dissolved in cold water. As the temperature increases, these gases gain energy which lets them escape from the liquid water in which they are trapped. To relate this phenomenon to something encountered in daily life, a cold can of Coca-Cola has more fizz than a warm one. The fizz is the result of gases escaping from the cold liquid. The warmer Coca-Cola does not contain as much dissolved gas, so it is "flat." 2. Yes, water contains oxygen. The molecular formula for water is H2O, meaning that there are two covalently bonded hydrogens to each oxygen. Change this formula, and you don't have something that can be called "water" anymore. A common misconception is that the process of boiling creates oxygen and hydrogen gases (O2 and H2), which is simply not true. The act of boiling water imparts energy to the liquid water molecules. This energy is enough to break the hydrogen bonds that hold the water molecules together in liquid form. Once these bonds are broken, the water molecules vaporize and go from being H2O (liquid) to H2O (gas). Therefore, the vapor produced as water boils is water vapor. Before the boiling point is reached, you can see the dissolved gases initially present in the cold water (for example, CO2 and O2) forming bubbles and rising to the top. Remember, these were initially present-- they are not a result of the covalent O-H bonds in water being broken as part of the boiling process. The covalent O-H bonds are not broken during boiling, only water vapor is formed.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

15y ago

Water is able to dissolve some gases of which Oxygen is one. At 25 deg C it contains approx. 8mg/L. i.e. not very much; but essential to marine life. As you raise the water temperature the Oxygen is less soluble and is driven out till at a high enough temp. all the O2 is removed. But this is NOT the same O2 that the water is made from i.e. H2O. To break this down requires much more energy e.g. by Electrolysis.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

Yes.

Boiling water will remove most, but not all, of the DISSOLVED oxygen. There will still be traces.

Also (if this was a trick question) oxygen is one of the atoms in the water molecule. If you remove the oxygen, it's not water any more.

This answer is:
User Avatar

User Avatar

Wiki User

8y ago

When you boil water, you are breaking the attractive force between water molecules. The bond holding the hydrogen and oxygen atoms to each other within a water molecule are much stronger.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

Not from the water molecule, No.

But boiling will remove any oxygen dissolved in the water

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

Boiling water does not change the molecular structure of it. Therefore, the answer to your question is no. Boiling water does not decrease the oxygen levels in it.

This answer is:
User Avatar

User Avatar

Wiki User

7y ago

Dissolved gases are easily released at high temperature.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

As it is boiling, yes!

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Does boiling water have oxygen
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

When boiling water what particular gas evaporates first oxygen and hydrogen?

When boiling water, the elements do not seperate. The only substance that evaporates is water as 'steam'.


Why is water liquid at room temp but oxygen is gas at room temp?

Oxygen has a lower boiling point than water.


Does boiling water have oxygen in it?

No,boiling water does not have oxygen . Cold water molecules move slowly meaning there is space between the molecules for more oxygen to dissolve. Hot water molecules move rapidly meaning the space between the water molecules is less avalible for the oxygen molecues to dissolve into.


What is the difference between boiling water and decomposing water?

when vapour pressure>/ = atmospheric pressure then called boiling. sepration of water in hydrogen and oxygen is called decomposition.


Composition of a water bubble in boiling water?

A water bubble consists of oxygen. Bubbles occur because of escaping air from liquids when heated. There is plenty of oxygen in water and that is why the bubbles are mostly oxygen.


Does boiling decompose water?

No. Boiling water just changes the state of matter. From a liquid to a gas. still 2 hydrogen and still 1 oxygen


Can steel be rusted by cold luke and boling water?

It requires water and oxygen. Cold, lukewarm, or boiling water will do it. Boiling can introduce some other types of errosion/corrosion, also.


Can water be separated into hydrogen and oxygen by boil physical change or chemical change?

Water cannot be separated into hydrogen and oxygen by boiling. Boiling is a physical change which means the molecule doesn't change at all--liquid water and water vapor are both H2O. Water can be separated into hydrogen and oxygen using electricity, this would be a chemical change.


Is the boiling point hydrogen or oxygen colder?

It is simply the water that freexes. Water is not simply a mixture if hydrogen and oxygen. The two elements are bound together to form water molecules. So it must be treated as its own substance. The behavior of water cannot be explained using the behavior of elemental hydrogen or oxygen. Its properties are different from its constituent elements.


Does the content of oxygen in water decreases when water is boiled for too long?

When you boil water the oxygen content is reduced to zero. (All gasses are driven out,) Boiling it longer doesn't have much effect.


Which has the lowest boiling point alcohol oxygen petrol?

Oxygen has the lowest boiling point of these. It is far below the boiling points of the others.


Is water's boiling point higher than oxygen?

definitely oxygen boils at about 90.2 kelvin (degrees C above absolute zero)